Improved loplugin:redundantcast const_cast handling: vcl

Change-Id: I7ecc72d4a5a68db8755ff0147fa1326e33827a82

vcl/unx/generic/fontmanager/fontsubst.cxx

@@ -105,7 +105,7 @@ bool FcPreMatchSubstitution::FindFontSubstitute( FontSelectPattern &rFontSelData
     //just on the name, cache map all the input and all the output not just map
     //from original selection to output fontname
     FontSelectPattern& rPatternAttributes = rFontSelData;
-    CachedFontMapType &rCachedFontMap = const_cast<CachedFontMapType &>(maCachedFontMap);
+    CachedFontMapType &rCachedFontMap = maCachedFontMap;
     CachedFontMapType::iterator itr = std::find_if(rCachedFontMap.begin(), rCachedFontMap.end(), equal(rPatternAttributes));
     if (itr != rCachedFontMap.end())
     {