present: Remove superfluous set abort flip function in window mode

The function is never called from present_screen.c in contrast to the behavior
in screen mode.

In present_wnmd.c we can simply remove the function which does an unnecessary
check of the property before setting it and directly set the property at the
two locations the function was called previously.
Signed-off-by: Roman Gilg <subdiff@gmail.com>

present/present_priv.h

@@ -481,9 +481,6 @@ present_vblank_destroy(present_vblank_ptr vblank);
 /*
  * present_wnmd.c
  */
-void
-present_wnmd_set_abort_flip(WindowPtr window);
-
 void
 present_wnmd_init_mode_hooks(present_screen_priv_ptr screen_priv);
 

present/present_wnmd.c

@@ -138,16 +138,6 @@ present_wnmd_toplvl_pixmap_window(WindowPtr window)
     return w;
 }
 
-void
-present_wnmd_set_abort_flip(WindowPtr window)
-{
-    present_window_priv_ptr window_priv = present_window_priv(window);
-
-    if (!window_priv->flip_pending->abort_flip) {
-        window_priv->flip_pending->abort_flip = TRUE;
-    }
-}
-
 static void
 present_wnmd_flips_stop(WindowPtr window)
 {
@@ -352,7 +342,7 @@ present_wnmd_check_flip_window (WindowPtr window)
     if (flip_pending) {
         if (!present_wnmd_check_flip(flip_pending->crtc, flip_pending->window, flip_pending->pixmap,
                                 flip_pending->sync_flip, NULL, 0, 0, NULL))
-            present_wnmd_set_abort_flip(window);
+            window_priv->flip_pending->abort_flip = TRUE;
     } else if (flip_active) {
         if (!present_wnmd_check_flip(flip_active->crtc, flip_active->window, flip_active->pixmap,
                                      flip_active->sync_flip, NULL, 0, 0, NULL))
@@ -399,7 +389,7 @@ present_wnmd_cancel_flip(WindowPtr window)
     present_window_priv_ptr window_priv = present_window_priv(window);
 
     if (window_priv->flip_pending)
-        present_wnmd_set_abort_flip(window);
+        window_priv->flip_pending->abort_flip = TRUE;
     else if (window_priv->flip_active)
         present_wnmd_flips_stop(window);
 }