sw: unused Parent [-Werror=unused-parameter]

Change-Id: I4576837da4b908ac0393be155758b6b60afc6c45

sw/source/uibase/uno/unotxdoc.cxx

@@ -3294,6 +3294,7 @@ void SAL_CALL SwXTextDocument::paintTile( const ::css::uno::Any& Parent, ::sal_I
     paintTile( aDevice, nOutputWidth, nOutputHeight, nTilePosX, nTilePosY, nTileWidth, nTileHeight );
     #else
     // TODO: support other platforms
+    (void)Parent;
     (void)nOutputWidth;
     (void)nOutputHeight;
     (void)nTilePosX;