loplugin:redundantcast: const_cast to same type

Change-Id: I610fd4cf9339fd5c18eb77e7c94ffd0f99e9b125

vcl/generic/glyphs/glyphcache.cxx

@@ -218,13 +218,9 @@ ServerFont* GlyphCache::CacheFont( const FontSelectPattern& rFontSelData )
 
 void GlyphCache::UncacheFont( ServerFont& rServerFont )
 {
-    // the interface for rServerFont must be const because a
-    // user who wants to release it only got const ServerFonts.
-    // The caching algorithm needs a non-const object
-    ServerFont* pFont = const_cast<ServerFont*>( &rServerFont );
-    if( (pFont->Release() <= 0) && (mnMaxSize <= mnBytesUsed) )
+    if( (rServerFont.Release() <= 0) && (mnMaxSize <= mnBytesUsed) )
     {
-        mpCurrentGCFont = pFont;
+        mpCurrentGCFont = &rServerFont;
         GarbageCollect();
     }
 }

vcl/source/app/svapp.cxx

@@ -1668,7 +1668,7 @@ ImplDelData::~ImplDelData()
     if( !mbDel && mpWindow )
     {
         // the window still exists but we were not removed
-        const_cast<vcl::Window*>(mpWindow.get())->ImplRemoveDel( this );
+        mpWindow.get()->ImplRemoveDel( this );
         mpWindow = NULL;
     }
 }

vcl/source/gdi/impgraph.cxx

@@ -697,7 +697,7 @@ void ImpGraphic::ImplSetPrefSize( const Size& rPrefSize )
             if(maSvgData.get() && maEx.IsEmpty())
             {
                 // use maEx as local buffer for rendered svg
-                const_cast< ImpGraphic* >(this)->maEx = maSvgData->getReplacement();
+                maEx = maSvgData->getReplacement();
             }
 
             // #108077# Push through pref size to animation object,

vcl/unx/gtk/fpicker/SalGtkPicker.cxx

@@ -47,7 +47,7 @@ OUString SalGtkPicker::uritounicode(const gchar* pIn)
     if (!pIn)
         return OUString();
 
-    OUString sURL( const_cast<const sal_Char *>(pIn), strlen(pIn),
+    OUString sURL( pIn, strlen(pIn),
         RTL_TEXTENCODING_UTF8 );
 
     INetURLObject aURL(sURL);