fix warning by removing std::move() on temporary http_client object

src/wallet/wallet2.cpp

@@ -1125,7 +1125,7 @@ void wallet_device_callback::on_progress(const hw::device_progress& event)
 }
 
 wallet2::wallet2(network_type nettype, uint64_t kdf_rounds, bool unattended, std::unique_ptr<epee::net_utils::http::http_client_factory> http_client_factory):
-  m_http_client(std::move(http_client_factory->create())),
+  m_http_client(http_client_factory->create()),
   m_multisig_rescan_info(NULL),
   m_multisig_rescan_k(NULL),
   m_upper_transaction_weight_limit(0),