drm/scheduler: Remove entity->rq NULL check

That is superflous now.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Nayan Deshmukh <nayan26deshmukh@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/scheduler/gpu_scheduler.c

@@ -591,11 +591,6 @@ void drm_sched_entity_push_job(struct drm_sched_job *sched_job,
 	if (first) {
 		/* Add the entity to the run queue */
 		spin_lock(&entity->rq_lock);
-		if (!entity->rq) {
-			DRM_ERROR("Trying to push to a killed entity\n");
-			spin_unlock(&entity->rq_lock);
-			return;
-		}
 		drm_sched_rq_add_entity(entity->rq, entity);
 		spin_unlock(&entity->rq_lock);
 		drm_sched_wakeup(entity->rq->sched);