drm/vc4: Don set gem_obj->resv in prime import anymore

This is done in drm_prime.c now.
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190614203615.12639-48-daniel.vetter@ffwll.ch

drivers/gpu/drm/vc4/vc4_bo.c

@@ -793,8 +793,6 @@ vc4_prime_import_sg_table(struct drm_device *dev,
 	if (IS_ERR(obj))
 		return obj;
 
-	obj->resv = attach->dmabuf->resv;
-
 	return obj;
 }