network: drop redundant check for loopback address

As long as a domain name is used for host(which is already checked for
beforehand) we don't care what exact IP it resolves to and this check
seems to cause trouble with mandatory tls servers on some setups.

src/network_asio.cpp

@@ -122,9 +122,6 @@ void connection::handle_connect(const boost::system::error_code& ec, endpoint en
 	} else {
 		LOG_NW << "Connected to " << endpoint.address();
 
-		if(endpoint.address().is_loopback()) {
-			use_tls_ = false;
-		}
 		handshake();
 	}
 }