Cppcheck: Variables reassigned before the old one has been use

See http://nabble.documentfoundation.org/cppcheck-Variables-reassigned-before-the-old-one-has-been-used-vcl-kde4-part-td4044235.html

Change-Id: I9ce272c4116395a95a09e5633acfeaa5b1edbe12

vcl/unx/kde4/KDESalFrame.cxx

@@ -298,11 +298,8 @@ void KDESalFrame::UpdateSettings( AllSettings& rSettings )
         QPalette qMenuCG = pMenuBar->palette();
 
         // Menu text and background color, theme specific
-        Color aMenuFore = toColor( qMenuCG.color( QPalette::WindowText ) );
-        Color aMenuBack = toColor( qMenuCG.color( QPalette::Window ) );
-
-        aMenuFore = toColor( qMenuCG.color( QPalette::ButtonText ) );
-        aMenuBack = toColor( qMenuCG.color( QPalette::Button ) );
+        Color aMenuFore = toColor( qMenuCG.color( QPalette::ButtonText ) );
+        Color aMenuBack = toColor( qMenuCG.color( QPalette::Button ) );
 
         style.SetMenuTextColor( aMenuFore );
         style.SetMenuBarTextColor( aMenuFore );