Very little optimization by using a simpler scope_guard when possible

The version with the vector, that can be disabled etc, is “very” slow, so we
use unique_ptr when we don’t need to disable it, and when it only contains
one function

louloulibs/network/tcp_socket_handler.cpp

@@ -103,8 +103,6 @@ void TCPSocketHandler::connect(const std::string& address, const std::string& po
   this->port = port;
   this->use_tls = tls;
 
-  utils::ScopeGuard sg;
-
   struct addrinfo* addr_res;
 
   if (!this->connecting)