devlink: remove no longer true locking comment from port_new/del()

All commands are called holding instance lock. Remove the outdated
comment that says otherwise.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/devlink.h

@@ -1506,8 +1506,6 @@ struct devlink_ops {
 	 * attributes
 	 *
 	 * Notes:
-	 *	- Called without devlink instance lock being held. Drivers must
-	 *	  implement own means of synchronization
 	 *	- On success, drivers must register a port with devlink core
 	 *
 	 * Return: 0 on success, negative value otherwise.
@@ -1525,8 +1523,6 @@ struct devlink_ops {
 	 * to delete a previously created port function
 	 *
 	 * Notes:
-	 *	- Called without devlink instance lock being held. Drivers must
-	 *	  implement own means of synchronization
 	 *	- On success, drivers must unregister the corresponding devlink
 	 *	  port
 	 *