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diff --git a/Master/texmf-dist/tex/plain/plgraph/miniltx.tex b/Master/texmf-dist/tex/plain/plgraph/miniltx.tex
deleted file mode 100644
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--- a/Master/texmf-dist/tex/plain/plgraph/miniltx.tex
+++ /dev/null
@@ -1,438 +0,0 @@
-%%%
-%%%
-%%% Parts of LaTeX: Slightly changed/simplified in places.
-%%% Changes
-%%% Copyright 1996 David Carlisle
-%%% Original Code
-%%% Copyright 1993-1996 LaTeX3 Project and original authors
-%%%
-%%% Under no circumstances should any problems relating to this file
-%%% be sent to the LaTeX bugs address, or any other LaTeX related
-%%% support address.
-%%%
-%%% Problems can be sent to me directly at carlisle@ma.man.ac.uk
-%%% (but I don't promise to fix them).
-%%%
-
-% 1996/01/29 initial version
-% 1996/05/09 a few missing commands added
-% 1996/11/21 fixed @ catcode handling
-
-\edef\resetatcatcode{\catcode`\noexpand\@\the\catcode`\@\relax}
-\ifx\miniltx\undefined\else\endinput\fi
-\let\miniltx\box
-
-\def\makeatletter{\catcode`\@11\relax}
-\def\makeatother{\catcode`\@12\relax}
-\makeatletter
-
-\def\@makeother#1{\catcode`#1=12\relax}
-
-
-\def\@ifnextchar#1#2#3{%
- \let\reserved@d=#1%
- \def\reserved@a{#2}\def\reserved@b{#3}%
- \futurelet\@let@token\@ifnch}
-\def\@ifnch{%
- \ifx\@let@token\@sptoken
- \let\reserved@c\@xifnch
- \else
- \ifx\@let@token\reserved@d
- \let\reserved@c\reserved@a
- \else
- \let\reserved@c\reserved@b
- \fi
- \fi
- \reserved@c}
-\begingroup
-\def\:{\global\let\@sptoken= } \: % this makes \@sptoken a space token
-\def\:{\@xifnch} \expandafter\gdef\: {\futurelet\@let@token\@ifnch}
-\endgroup
-
-
-
-\def\@ifstar#1{\@ifnextchar *{\@firstoftwo{#1}}}
-\long\def\@dblarg#1{\@ifnextchar[{#1}{\@xdblarg{#1}}}
-\long\def\@xdblarg#1#2{#1[{#2}]{#2}}
-
-\long\def \@gobble #1{}
-\long\def \@gobbletwo #1#2{}
-\long\def \@gobblefour #1#2#3#4{}
-\long\def\@firstofone#1{#1}
-\long\def\@firstoftwo#1#2{#1}
-\long\def\@secondoftwo#1#2{#2}
-
-\def\NeedsTeXFormat#1{\@ifnextchar[\@needsf@rmat\relax}
-\def\@needsf@rmat[#1]{}
-\def\ProvidesPackage#1{\@ifnextchar[%
- {\@pr@videpackage{#1}}{\@pr@videpackage#1[]}}
-\def\@pr@videpackage#1[#2]{\wlog{#1: #2}}
-\let\ProvidesFile\ProvidesPackage
-\def\PackageInfo#1#2{\wlog{#1: #2}}
-
-\let\DeclareOption\@gobbletwo
-\let\ProcessOptions\relax
-
-\def\RequirePackage{%
- \@fileswithoptions\@pkgextension}
-\def\@fileswithoptions#1{%
- \@ifnextchar[%]
- {\@fileswith@ptions#1}%
- {\@fileswith@ptions#1[]}}
-\def\@fileswith@ptions#1[#2]#3{%
- \@ifnextchar[%]
- {\@fileswith@pti@ns#1[#2]#3}%
- {\@fileswith@pti@ns#1[#2]#3[]}}
-
-\def\@fileswith@pti@ns#1[#2]#3[#4]{%
- \def\reserved@b##1,{%
- \ifx\@nil##1\relax\else
- \ifx\relax##1\relax\else
- \noexpand\@onefilewithoptions##1[#2][#4]\noexpand\@pkgextension
- \fi
- \expandafter\reserved@b
- \fi}%
- \edef\reserved@a{\zap@space#3 \@empty}%
- \edef\reserved@a{\expandafter\reserved@b\reserved@a,\@nil,}%
- \reserved@a}
-
-\def\zap@space#1 #2{%
- #1%
- \ifx#2\@empty\else\expandafter\zap@space\fi
- #2}
-
-\let\@empty\empty
-\def\@pkgextension{sty}
-
-\def\@onefilewithoptions#1[#2][#3]#4{%
- \input #1.#4 }
-
-
-
-\def\typein{%
- \let\@typein\relax
- \@testopt\@xtypein\@typein}
-\def\@xtypein[#1]#2{%
- \message{#2}%
- \advance\endlinechar\@M
- \read\@inputcheck to#1%
- \advance\endlinechar-\@M
- \@typein}
-\def\@namedef#1{\expandafter\def\csname #1\endcsname}
-\def\@nameuse#1{\csname #1\endcsname}
-\def\@cons#1#2{\begingroup\let\@elt\relax\xdef#1{#1\@elt #2}\endgroup}
-\def\@car#1#2\@nil{#1}
-\def\@cdr#1#2\@nil{#2}
-\def\@carcube#1#2#3#4\@nil{#1#2#3}
-\def\@preamblecmds{}
-
-\def\@star@or@long#1{%
- \@ifstar
- {\let\l@ngrel@x\relax#1}%
- {\let\l@ngrel@x\long#1}}
-
-\let\l@ngrel@x\relax
-\def\newcommand{\@star@or@long\new@command}
-\def\new@command#1{%
- \@testopt{\@newcommand#1}0}
-\def\@newcommand#1[#2]{%
- \@ifnextchar [{\@xargdef#1[#2]}%
- {\@argdef#1[#2]}}
-\long\def\@argdef#1[#2]#3{%
- \@ifdefinable #1{\@yargdef#1\@ne{#2}{#3}}}
-\long\def\@xargdef#1[#2][#3]#4{%
- \@ifdefinable#1{%
- \expandafter\def\expandafter#1\expandafter{%
- \expandafter
- \@protected@testopt
- \expandafter
- #1%
- \csname\string#1\expandafter\endcsname
- {#3}}%
- \expandafter\@yargdef
- \csname\string#1\endcsname
- \tw@
- {#2}%
- {#4}}}
-\def\@testopt#1#2{%
- \@ifnextchar[{#1}{#1[#2]}}
-\def\@protected@testopt#1{%%
- \ifx\protect\@typeset@protect
- \expandafter\@testopt
- \else
- \@x@protect#1%
- \fi}
-\long\def\@yargdef#1#2#3{%
- \@tempcnta#3\relax
- \advance \@tempcnta \@ne
- \let\@hash@\relax
- \edef\reserved@a{\ifx#2\tw@ [\@hash@1]\fi}%
- \@tempcntb #2%
- \@whilenum\@tempcntb <\@tempcnta
- \do{%
- \edef\reserved@a{\reserved@a\@hash@\the\@tempcntb}%
- \advance\@tempcntb \@ne}%
- \let\@hash@##%
- \l@ngrel@x\expandafter\def\expandafter#1\reserved@a}
-\long\def\@reargdef#1[#2]#3{%
- \@yargdef#1\@ne{#2}{#3}}
-\def\renewcommand{\@star@or@long\renew@command}
-\def\renew@command#1{%
- {\escapechar\m@ne\xdef\@gtempa{{\string#1}}}%
- \expandafter\@ifundefined\@gtempa
- {\@latex@error{\string#1 undefined}\@ehc}%
- {}%
- \let\@ifdefinable\@rc@ifdefinable
- \new@command#1}
-\long\def\@ifdefinable #1#2{%
- \edef\reserved@a{\expandafter\@gobble\string #1}%
- \@ifundefined\reserved@a
- {\edef\reserved@b{\expandafter\@carcube \reserved@a xxx\@nil}%
- \ifx \reserved@b\@qend \@notdefinable\else
- \ifx \reserved@a\@qrelax \@notdefinable\else
- #2%
- \fi
- \fi}%
- \@notdefinable}
-\let\@@ifdefinable\@ifdefinable
-\long\def\@rc@ifdefinable#1#2{%
- \let\@ifdefinable\@@ifdefinable
- #2}
-\def\newenvironment{\@star@or@long\new@environment}
-\def\new@environment#1{%
- \@testopt{\@newenva#1}0}
-\def\@newenva#1[#2]{%
- \@ifnextchar [{\@newenvb#1[#2]}{\@newenv{#1}{[#2]}}}
-\def\@newenvb#1[#2][#3]{\@newenv{#1}{[#2][#3]}}
-\def\renewenvironment{\@star@or@long\renew@environment}
-\def\renew@environment#1{%
- \@ifundefined{#1}%
- {\@latex@error{Environment #1 undefined}\@ehc
- }{}%
- \expandafter\let\csname#1\endcsname\relax
- \expandafter\let\csname end#1\endcsname\relax
- \new@environment{#1}}
-\long\def\@newenv#1#2#3#4{%
- \@ifundefined{#1}%
- {\expandafter\let\csname#1\expandafter\endcsname
- \csname end#1\endcsname}%
- \relax
- \expandafter\new@command
- \csname #1\endcsname#2{#3}%
- \l@ngrel@x\expandafter\def\csname end#1\endcsname{#4}}
-
-\def\providecommand{\@star@or@long\provide@command}
-\def\provide@command#1{%
- {\escapechar\m@ne\xdef\@gtempa{{\string#1}}}%
- \expandafter\@ifundefined\@gtempa
- {\def\reserved@a{\new@command#1}}%
- {\def\reserved@a{\renew@command\reserved@a}}%
- \reserved@a}%
-
-\def\@ifundefined#1{%
- \expandafter\ifx\csname#1\endcsname\relax
- \expandafter\@firstoftwo
- \else
- \expandafter\@secondoftwo
- \fi}
-
-\chardef\@xxxii=32
-\mathchardef\@Mi=10001
-\mathchardef\@Mii=10002
-\mathchardef\@Miii=10003
-\mathchardef\@Miv=10004
-
-\newcount\@tempcnta
-\newcount\@tempcntb
-\newif\if@tempswa\@tempswatrue
-\newdimen\@tempdima
-\newdimen\@tempdimb
-\newdimen\@tempdimc
-\newbox\@tempboxa
-\newskip\@tempskipa
-\newskip\@tempskipb
-\newtoks\@temptokena
-
-\long\def\@whilenum#1\do #2{\ifnum #1\relax #2\relax\@iwhilenum{#1\relax
- #2\relax}\fi}
-\long\def\@iwhilenum#1{\ifnum #1\expandafter\@iwhilenum
- \else\expandafter\@gobble\fi{#1}}
-\long\def\@whiledim#1\do #2{\ifdim #1\relax#2\@iwhiledim{#1\relax#2}\fi}
-\long\def\@iwhiledim#1{\ifdim #1\expandafter\@iwhiledim
- \else\expandafter\@gobble\fi{#1}}
-\long\def\@whilesw#1\fi#2{#1#2\@iwhilesw{#1#2}\fi\fi}
-\long\def\@iwhilesw#1\fi{#1\expandafter\@iwhilesw
- \else\@gobbletwo\fi{#1}\fi}
-\def\@nnil{\@nil}
-\def\@empty{}
-\def\@fornoop#1\@@#2#3{}
-\long\def\@for#1:=#2\do#3{%
- \expandafter\def\expandafter\@fortmp\expandafter{#2}%
- \ifx\@fortmp\@empty \else
- \expandafter\@forloop#2,\@nil,\@nil\@@#1{#3}\fi}
-\long\def\@forloop#1,#2,#3\@@#4#5{\def#4{#1}\ifx #4\@nnil \else
- #5\def#4{#2}\ifx #4\@nnil \else#5\@iforloop #3\@@#4{#5}\fi\fi}
-\long\def\@iforloop#1,#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
- \expandafter\@fornoop \else
- #4\relax\expandafter\@iforloop\fi#2\@@#3{#4}}
-\def\@tfor#1:={\@tf@r#1 }
-\long\def\@tf@r#1#2\do#3{\def\@fortmp{#2}\ifx\@fortmp\space\else
- \@tforloop#2\@nil\@nil\@@#1{#3}\fi}
-\long\def\@tforloop#1#2\@@#3#4{\def#3{#1}\ifx #3\@nnil
- \expandafter\@fornoop \else
- #4\relax\expandafter\@tforloop\fi#2\@@#3{#4}}
-\long\def\@break@tfor#1\@@#2#3{\fi\fi}
-\def\@removeelement#1#2#3{%
- \def\reserved@a##1,#1,##2\reserved@a{##1,##2\reserved@b}%
- \def\reserved@b##1,\reserved@b##2\reserved@b{%
- \ifx,##1\@empty\else##1\fi}%
- \edef#3{%
- \expandafter\reserved@b\reserved@a,#2,\reserved@b,#1,\reserved@a}}
-
-\let\ExecuteOptions\@gobble
-
-\def\PackageError#1#2#3{%
- \errhelp{#3}\errmessage{#1: #2}}
-\def\@latex@error#1#2{%
- \errhelp{#2}\errmessage{#1}}
-
-\bgroup\uccode`\!`\%\uppercase{\egroup
-\def\@percentchar{!}}
-
-\let\@@input\input
-\def\input{\@ifnextchar\bgroup\@iinput\@@input}
-\def\@iinput#1{\@@input#1 }
-
- \def\filename@parse#1{%
- \let\filename@area\@empty
- \expandafter\filename@simple#1.\\}
-
- \def\filename@simple#1.#2\\{%
- \ifx\\#2\\%
- \let\filename@ext\relax
- \else
- \edef\filename@ext{\filename@dot#2\\}%
- \fi
- \edef\filename@base{#1}}
- \def\filename@dot#1.\\{#1}
-
-\long\def \IfFileExists#1#2#3{%
- \openin\@inputcheck#1 %
- \ifeof\@inputcheck
- \ifx\input@path\@undefined
- \def\reserved@a{#3}%
- \else
- \def\reserved@a{\@iffileonpath{#1}{#2}{#3}}%
- \fi
- \else
- \closein\@inputcheck
- \edef\@filef@und{#1 }%
- \def\reserved@a{#2}%
- \fi
- \reserved@a}
-\long\def\@iffileonpath#1{%
- \let\reserved@a\@secondoftwo
- \expandafter\@tfor\expandafter\reserved@b\expandafter
- :\expandafter=\input@path\do{%
- \openin\@inputcheck\reserved@b#1 %
- \ifeof\@inputcheck\else
- \edef\@filef@und{\reserved@b#1 }%
- \let\reserved@a\@firstoftwo%
- \closein\@inputcheck
- \@break@tfor
- \fi}%
- \reserved@a}
-\long\def \InputIfFileExists#1#2{%
- \IfFileExists{#1}%
- {#2\@addtofilelist{#1}\@@input \@filef@und}}
-
-\chardef\@inputcheck0
-
-\let\@addtofilelist \@gobble
-
-
-\def\@defaultunits{\afterassignment\remove@to@nnil}
-\def\remove@to@nnil#1\@nnil{}
-
-\newdimen\leftmarginv
-\newdimen\leftmarginvi
-
-\newdimen\@ovxx
-\newdimen\@ovyy
-\newdimen\@ovdx
-\newdimen\@ovdy
-\newdimen\@ovro
-\newdimen\@ovri
-\newdimen\@xdim
-\newdimen\@ydim
-\newdimen\@linelen
-\newdimen\@dashdim
-
-
-\long\def\mbox#1{\leavevmode\hbox{#1}}
-
-
-\let\DeclareRobustCommand\newcommand
-\let\@onlypreamble\@gobble
-
-
-\def\AtBeginDocument#1{#1}
-\let\protect\relax
-
-
-\newdimen\fboxsep
-\newdimen\fboxrule
-
-\fboxsep = 3pt
-\fboxrule = .4pt
-
-\def\@height{height} \def\@depth{depth} \def\@width{width}
-\def\@minus{minus}
-\def\@plus{plus}
-\def\hb@xt@{\hbox to}
-
-
-\long\def\@begin@tempboxa#1#2{%
- \begingroup
- \setbox\@tempboxa#1{\color@begingroup#2\color@endgroup}%
- \def\width{\wd\@tempboxa}%
- \def\height{\ht\@tempboxa}%
- \def\depth{\dp\@tempboxa}%
- \let\totalheight\@ovri
- \totalheight\height
- \advance\totalheight\depth}
-\let\@end@tempboxa\endgroup
-
-\let\set@color\relax
-\let\color@begingroup\relax
-\let\color@endgroup\relax
-\let\color@setgroup\relax
-\let\normalcolor\relax
-\let\color@hbox\relax
-\let\color@vbox\relax
-\let\color@endbox\relax
-
-% 1996/05/09 \setlength and \strip@pt needed for some
-% \includegraphics options (Thierry Bouche)
-
-\def\setlength#1#2{#1#2\relax}
-
-\begingroup
- \catcode`P=12
- \catcode`T=12
- \lowercase{
- \def\x{\def\rem@pt##1.##2PT{##1\ifnum##2>\z@.##2\fi}}}
- \expandafter\endgroup\x
-\def\strip@pt{\expandafter\rem@pt\the}
-
-% 1996/11/13 \AtBeginDvi used in driver files for including headers.
-% \@input added.
-
-
-\def\AtBeginDvi#1{#1}
-
-\def\@input#1{%
- \IfFileExists{#1}{\@@input\@filef@und}{\message{No file #1.}}}
-
-% 1996/11/21
-\def\@warning{\immediate\write16} \ No newline at end of file