drm/xe: Nuke EXEC_QUEUE_FLAG_PERSISTENT

This is a left over of commit f1a9abc0 ("drm/xe/uapi: Remove support for persistent exec_queues").

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307135229.41973-3-jose.souza@intel.com

drivers/gpu/drm/xe/xe_exec_queue_types.h

@@ -76,14 +76,12 @@ struct xe_exec_queue {
 #define EXEC_QUEUE_FLAG_KERNEL			BIT(1)
 /* kernel engine only destroyed at driver unload */
 #define EXEC_QUEUE_FLAG_PERMANENT		BIT(2)
-/* queue keeps running pending jobs after destroy ioctl */
-#define EXEC_QUEUE_FLAG_PERSISTENT		BIT(3)
 /* for VM jobs. Caller needs to hold rpm ref when creating queue with this flag */
-#define EXEC_QUEUE_FLAG_VM			BIT(4)
+#define EXEC_QUEUE_FLAG_VM			BIT(3)
 /* child of VM queue for multi-tile VM jobs */
-#define EXEC_QUEUE_FLAG_BIND_ENGINE_CHILD	BIT(5)
+#define EXEC_QUEUE_FLAG_BIND_ENGINE_CHILD	BIT(4)
 /* kernel exec_queue only, set priority to highest level */
-#define EXEC_QUEUE_FLAG_HIGH_PRIORITY		BIT(6)
+#define EXEC_QUEUE_FLAG_HIGH_PRIORITY		BIT(5)
 
 	/**
 	 * @flags: flags for this exec queue, should statically setup aside from ban