dix: remove unused EnterLeaveSemaphoresIsset.

Signed-off-by: Peter Hutterer <peter.hutterer@redhat.com>

dix/events.c

@@ -6148,21 +6148,6 @@ ExtGrabDevice(ClientPtr client,
     return GrabSuccess;
 }
 
-/*
- * @return Zero if no device is currently in window, non-zero otherwise.
- */
-int
-EnterLeaveSemaphoresIsset(WindowPtr win)
-{
-    int set = 0;
-    int i;
-
-    for (i = 0; i < (MAXDEVICES + 7)/8; i++)
-        set += win->enterleave[i];
-
-    return set;
-}
-
 /*
  * @return Zero if no devices has focus on the window, non-zero otherwise.
  */

include/input.h

@@ -512,7 +512,6 @@ extern int AllocMasterDevice(ClientPtr client,
 extern void DeepCopyDeviceClasses(DeviceIntPtr from,
                                   DeviceIntPtr to);
 
-extern int EnterLeaveSemaphoresIsset(WindowPtr win);
 extern int FocusSemaphoresIsset(WindowPtr win);
 
 /* Implemented by the DDX. */