update lwmqtt_client_t initialization

Author: amarkevich

src/MQTTClient.cpp

@@ -120,9 +120,6 @@ static void MQTTClientHandler(lwmqtt_client_t * /*client*/, void *ref, lwmqtt_st
 }
 
 MQTTClient::MQTTClient(int bufSize) {
-  // reset client
-  memset(&this->client, 0, sizeof(lwmqtt_client_t));
-
   // allocate buffers
   this->bufSize = (size_t)bufSize;
   this->readBuf = (uint8_t *)malloc((size_t)bufSize + 1);

src/MQTTClient.h

@@ -50,7 +50,7 @@ class MQTTClient {
   lwmqtt_arduino_network_t network = {nullptr};
   lwmqtt_arduino_timer_t timer1 = {0, nullptr};
   lwmqtt_arduino_timer_t timer2 = {0, nullptr};
-  lwmqtt_client_t client = {0};
+  lwmqtt_client_t client = lwmqtt_client_t();
 
   bool _connected = false;
   lwmqtt_return_code_t _returnCode = (lwmqtt_return_code_t)0;