sock: remove unneeded semicolon

remove unneeded semicolon.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/sock.c

@@ -3013,7 +3013,7 @@ int sock_gettstamp(struct socket *sock, void __user *userstamp,
 		return -ENOENT;
 	if (ts.tv_sec == 0) {
 		ktime_t kt = ktime_get_real();
-		sock_write_timestamp(sk, kt);;
+		sock_write_timestamp(sk, kt);
 		ts = ktime_to_timespec64(kt);
 	}