fix ipv6 port not be listened

Author: zhanglyutao.zlt

src/obproxy/iocore/net/ob_inet.h

@@ -565,7 +565,6 @@ inline bool ops_is_ip_any(const sockaddr &ip)
 inline bool ops_ip_copy(sockaddr &dst, const sockaddr &src)
 {
   int64_t n = 0;
-  int64_t n2 = 0;
   switch (src.sa_family) {
     case AF_INET:
       n = sizeof(sockaddr_in);
@@ -577,20 +576,7 @@ inline bool ops_ip_copy(sockaddr &dst, const sockaddr &src)
     case AF_UNIX:
       break;
   }
-  switch (dst.sa_family) {
-    case AF_INET:
-      n2 = sizeof(sockaddr_in);
-      break;
-
-    case AF_INET6:
-      n2 = sizeof(sockaddr_in6);
-      break;
-
-    default:
-      n2 = sizeof(sockaddr_in);
-      break;
-  }
-  if (n && n <= n2) {
+  if (n) {
     MEMCPY(&dst, &src, n);
 #if HAVE_STRUCT_SOCKADDR_SA_LEN
     dst.sa_len = n;