vcl: No need for WinGlyphFallbackSubstititution to be friend class

Change-Id: Ibe742afdbdf2601e33621d81ad2759aa483d368e
Reviewed-on: https://gerrit.libreoffice.org/20880Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>
Tested-by: Chris Sherlock <chris.sherlock79@gmail.com>

vcl/inc/PhysicalFontCollection.hxx

@@ -66,7 +66,6 @@ public:
     PhysicalFontFamily*     FindByAttributes(ImplFontAttrs nSearchType, FontWeight, FontWidth,
                                              FontItalic, const OUString& rSearchFamily) const;
 private:
-    friend class WinGlyphFallbackSubstititution;
     mutable bool            mbMatchData;    // true if matching attributes are initialized
     bool                    mbMapNames;     // true if MapNames are available