wined3d: Disable D3DFMT_A4L4.

dlls/wined3d/directx.c

@@ -2228,11 +2228,15 @@ static BOOL CheckTextureCapability(UINT Adapter, WINED3DDEVTYPE DeviceType, WINE
          */
         case WINED3DFMT_L8:
         case WINED3DFMT_A8L8:
-        case WINED3DFMT_A4L4:
         case WINED3DFMT_L16:
             TRACE_(d3d_caps)("[OK]\n");
             return TRUE;
 
+        /* Not supported on Windows, thus disabled */
+        case WINED3DFMT_A4L4:
+            TRACE_(d3d_caps)("[FAILED] - not supported on windows\n");
+            return FALSE;
+
         /*****
          *  Supported: Depth/Stencil formats
          */