Removing default value assignment within connect function

Author: aentinger

src/MqttClient.h

@@ -65,8 +65,8 @@ class MqttClient : public Client {
   void poll();
 
   // from Client
-  virtual int connect(IPAddress ip, uint16_t port = 1883);
-  virtual int connect(const char *host, uint16_t port = 1883);
+  virtual int connect(IPAddress ip, uint16_t port);
+  virtual int connect(const char *host, uint16_t port);
 #ifdef ESP8266
   virtual int connect(const IPAddress& ip, uint16_t port) { return 0; }; /* ESP8266 core defines this pure virtual in Client.h */
 #endif