comctl32: Remove superfluous casts that crept in as well as some older ones.

dlls/comctl32/commctrl.c

diff --git a/dlls/comctl32/commctrl.c b/dlls/comctl32/commctrl.c
index a3a0fb1..b97a5e5 100644
--- a/dlls/comctl32/commctrl.c
+++ b/dlls/comctl32/commctrl.c
@@ -932,7 +932,7 @@
 	DeleteDC (hdcDst);
     }
     ReleaseDC (NULL, hdcScreen);
-    GlobalFree ((HGLOBAL)lpBitmapInfo);
+    GlobalFree (lpBitmapInfo);
     FreeResource (hglb);
 
     return hbm;