tools: Delete the unneeded semicolon after curly braces

Unneeded semicolon after curly braces, so delete it.
Signed-off-by: Shaomin Deng <dengshaomin@cdjrlc.com>
Message-Id: <20221105155151.12155-1-dengshaomin@cdjrlc.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

tools/virtio/virtio-trace/trace-agent-ctl.c

@@ -75,7 +75,7 @@ static int wait_order(int ctl_fd)
 
 		if (ret)
 			break;
-	};
+	}
 
 	return ret;