Revert of Wire 'blink::Platform::isHostnameReservedIPAddress()' to 'net::IsReservedIPAddress()'.

net/base/net_util.h

Index: net/base/net_util.h
diff --git a/net/base/net_util.h b/net/base/net_util.h
index c74dfd2ea48486b08e16be9fdb700b9d99f06bd0..364d41ebd50dccf77a92cb8c1fd908b667c80cc0 100644
--- a/net/base/net_util.h
+++ b/net/base/net_util.h
@@ -372,11 +372,6 @@
 // Maps the given AddressFamily to either AF_INET, AF_INET6 or AF_UNSPEC.
 NET_EXPORT_PRIVATE int ConvertAddressFamily(AddressFamily address_family);
 
-// Parses a URL-safe IP literal (see RFC 3986, Sec 3.2.2) to its numeric value.
-// Returns true on success, and fills |ip_number| with the numeric value
-NET_EXPORT bool ParseURLHostnameToNumber(const std::string& hostname,
-                                         IPAddressNumber* ip_number);
-
 // Parses an IP address literal (either IPv4 or IPv6) to its numeric value.
 // Returns true on success and fills |ip_number| with the numeric value.
 NET_EXPORT bool ParseIPLiteralToNumber(const std::string& ip_literal,