winex11: Rely on win32u to reset clipping on display mode change.

dlls/winex11.drv/desktop.c

@@ -446,7 +446,6 @@ void X11DRV_resize_desktop(void)
     NtUserSetWindowPos( hwnd, 0, virtual_rect.left, virtual_rect.top,
                         virtual_rect.right - virtual_rect.left, virtual_rect.bottom - virtual_rect.top,
                         SWP_NOZORDER | SWP_NOACTIVATE | SWP_DEFERERASE );
-    ungrab_clipping_window();
 
     if (old_virtual_rect.left != virtual_rect.left || old_virtual_rect.top != virtual_rect.top)
         send_message_timeout( HWND_BROADCAST, WM_X11DRV_DESKTOP_RESIZED, old_virtual_rect.left,

dlls/winex11.drv/mouse.c

@@ -455,7 +455,7 @@ static BOOL grab_clipping_window( const RECT *clip )
  *
  * Release the pointer grab on the clip window.
  */
-void ungrab_clipping_window(void)
+static void ungrab_clipping_window(void)
 {
     Display *display = thread_init_display();
     Window clip_window = init_clip_window();

dlls/winex11.drv/x11drv.h

@@ -686,7 +686,6 @@ extern void set_window_cursor( Window window, HCURSOR handle ) DECLSPEC_HIDDEN;
 extern void sync_window_cursor( Window window ) DECLSPEC_HIDDEN;
 extern LRESULT clip_cursor_notify( HWND hwnd, HWND prev_clip_hwnd, HWND new_clip_hwnd ) DECLSPEC_HIDDEN;
 extern LRESULT clip_cursor_request( HWND hwnd, BOOL fullscreen, BOOL reset ) DECLSPEC_HIDDEN;
-extern void ungrab_clipping_window(void) DECLSPEC_HIDDEN;
 extern void reset_clipping_window(void) DECLSPEC_HIDDEN;
 extern void retry_grab_clipping_window(void) DECLSPEC_HIDDEN;
 extern BOOL clip_fullscreen_window( HWND hwnd, BOOL reset ) DECLSPEC_HIDDEN;