nvme-fcloop: no need to return from void function

Remove return at the end of void function.
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>

drivers/nvme/target/fcloop.c

@@ -645,8 +645,6 @@ fcloop_fcp_recv_work(struct work_struct *work)
 	}
 	if (ret)
 		fcloop_call_host_done(fcpreq, tfcp_req, ret);
-
-	return;
 }
 
 static void