nvme-tcp: avoid open-coding nvme_tcp_teardown_admin_queue()

nvme_tcp_setup_ctrl() has an open-coded version of
nvme_tcp_teardown_admin_queue().

Signed-off-by: Hannes Reinecke <[e-mail]>
Tested-by: Mark O'Donovan <[e-mail]>
Signed-off-by: Keith Busch <[e-mail]>

drivers/nvme/host/tcp.c

···
 		nvme_tcp_destroy_io_queues(ctrl, new);
 	}
 destroy_admin:
-	nvme_quiesce_admin_queue(ctrl);
-	blk_sync_queue(ctrl->admin_q);
-	nvme_tcp_stop_queue(ctrl, 0);
-	nvme_cancel_admin_tagset(ctrl);
-	nvme_tcp_destroy_admin_queue(ctrl, new);
+	nvme_tcp_teardown_admin_queue(ctrl, false);
 	return ret;
 }