drm/qxl: Remove unecessary dma_fence_ops

The trivial enable_signaling implementation matches the default code.

v2: Fix up commit message to match patch better (Eric).

Cc: Eric Anholt <[e-mail]>
Reviewed-by: Eric Anholt <[e-mail]>
Signed-off-by: Daniel Vetter <[e-mail]>
Cc: Dave Airlie <[e-mail]>
Cc: Gerd Hoffmann <[e-mail]>
Cc: [e-mail]
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/qxl/qxl_release.c

···
 	return "release";
 }
 
-static bool qxl_nop_signaling(struct dma_fence *fence)
-{
-	/* fences are always automatically signaled, so just pretend we did this.. */
-	return true;
-}
-
 static long qxl_fence_wait(struct dma_fence *fence, bool intr,
 			   signed long timeout)
 {
···
 static const struct dma_fence_ops qxl_fence_ops = {
 	.get_driver_name = qxl_get_driver_name,
 	.get_timeline_name = qxl_get_timeline_name,
-	.enable_signaling = qxl_nop_signaling,
 	.wait = qxl_fence_wait,
 };