drm/xe: Remove unused xe_sync_entry_wait

xe_sync_entry_wait is no longer used, remove it.

Signed-off-by: Matthew Brost <[e-mail]>
Reviewed-by: Thomas Hellström <[e-mail]>
Reviewed-by: Nirmoy Das <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/xe/xe_sync.c

···
 	return 0;
 }
 
-int xe_sync_entry_wait(struct xe_sync_entry *sync)
-{
-	if (sync->fence)
-		dma_fence_wait(sync->fence, true);
-
-	return 0;
-}
-
 int xe_sync_entry_add_deps(struct xe_sync_entry *sync, struct xe_sched_job *job)
 {
 	int err;

drivers/gpu/drm/xe/xe_sync.h

···
 			struct xe_sync_entry *sync,
 			struct drm_xe_sync __user *sync_user,
 			unsigned int flags);
-int xe_sync_entry_wait(struct xe_sync_entry *sync);
 int xe_sync_entry_add_deps(struct xe_sync_entry *sync,
 			   struct xe_sched_job *job);
 void xe_sync_entry_signal(struct xe_sync_entry *sync,