selftests/net: remove unneeded semicolon

No functional modification involved.

./tools/testing/selftests/net/tcp_ao/setsockopt-closed.c:121:2-3: Unneeded semicolon.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7771
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/net/tcp_ao/setsockopt-closed.c

@@ -118,7 +118,7 @@ static void setsockopt_checked(int sk, int optname, void *optval,
 		break;
 	default:
 		break;
-	};
+	}
 
 	__setsockopt_checked(sk, optname, false, optval, &len, err, cmd, tst);
 }