Remove the PaintWindow optimization.

This was an attempt to avoid scratch gc creation and validation for paintwin
because that was expensive.  This is not the case in current servers, and the
danger of failure to implement it correctly (as seen in all previous
implementations) is high enough to justify removing it.  No performance
difference detected with x11perf -create -move -resize -circulate on Xvfb.
Leave the screen hooks for PaintWindow* in for now to avoid ABI change.

1 files changed, 2 insertions, 2 deletions

diff --git a/include/scrnintstr.h b/include/scrnintstr.h
index 110f4dce9..bcec02e39 100644
--- a/include/scrnintstr.h
+++ b/include/scrnintstr.h
@@ -477,8 +477,8 @@ typedef struct _Screen {
     ValidateTreeProcPtr		ValidateTree;
     PostValidateTreeProcPtr	PostValidateTree;
     WindowExposuresProcPtr	WindowExposures;
-    PaintWindowBackgroundProcPtr PaintWindowBackground;
-    PaintWindowBorderProcPtr	PaintWindowBorder;
+    PaintWindowBackgroundProcPtr PaintWindowBackground; /** unused */
+    PaintWindowBorderProcPtr	PaintWindowBorder; /** unused */
     CopyWindowProcPtr		CopyWindow;
     ClearToBackgroundProcPtr	ClearToBackground;
     ClipNotifyProcPtr		ClipNotify;