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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/PSPreviewFilter.hpp b/Build/source/texk/dvisvgm/dvisvgm-src/src/PSPreviewFilter.hpp
deleted file mode 100644
index 62860b6932e..00000000000
--- a/Build/source/texk/dvisvgm/dvisvgm-src/src/PSPreviewFilter.hpp
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-/*************************************************************************
-** PSPreviewFilter.hpp **
-** **
-** This file is part of dvisvgm -- a fast DVI to SVG converter **
-** Copyright (C) 2005-2021 Martin Gieseking <martin.gieseking@uos.de> **
-** **
-** This program is free software; you can redistribute it and/or **
-** modify it under the terms of the GNU General Public License as **
-** published by the Free Software Foundation; either version 3 of **
-** the License, or (at your option) any later version. **
-** **
-** This program is distributed in the hope that it will be useful, but **
-** WITHOUT ANY WARRANTY; without even the implied warranty of **
-** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
-** GNU General Public License for more details. **
-** **
-** You should have received a copy of the GNU General Public License **
-** along with this program; if not, see <http://www.gnu.org/licenses/>. **
-*************************************************************************/
-
-#ifndef PSPREVIEWFILTER_HPP
-#define PSPREVIEWFILTER_HPP
-
-#include <string>
-#include <vector>
-#include "BoundingBox.hpp"
-#include "PSFilter.hpp"
-
-class SpecialActions;
-
-class PSPreviewFilter : public PSFilter {
- public:
- explicit PSPreviewFilter (PSInterpreter &psi) : PSFilter(psi) {}
- void activate ();
- void execute (const char *code, size_t len) override;
- bool active () const override {return _active;}
- std::string version () const {return _version;}
- bool tightpage () const {return _tightpage;}
- void setDviScaleFactor (double dvi2bp) {_dvi2bp = dvi2bp;}
- void assignBorders (BoundingBox &bbox) const;
- bool getBoundingBox (BoundingBox &bbox) const;
- double height () const;
- double depth () const;
- double width () const;
-
- private:
- std::string _version; ///< version string of preview package
- bool _active=false; ///< true if filter is active
- bool _tightpage=false; ///< true if tightpage option was given
- double _dvi2bp=1.0/65536.0; ///< factor to convert dvi units to PS points
- std::vector<int> _boxExtents; ///< bounding box data set by the preview package (in DVI units)
-};
-
-#endif