Fixing headers for gateway modules (#1554)

* Fixing red squiggles in VSCode/PlatformIO

* Lint issues

main/main.ino

@@ -186,8 +186,6 @@ char mqtt_user[parameters_size + 1] = MQTT_USER; // not compulsory only if your
 char mqtt_pass[parameters_size + 1] = MQTT_PASS; // not compulsory only if your broker needs authentication
 char mqtt_server[parameters_size + 1] = MQTT_SERVER;
 char mqtt_port[6] = MQTT_PORT;
-char mqtt_topic[parameters_size + 1] = Base_Topic;
-char gateway_name[parameters_size + 1] = Gateway_Name;
 char ota_pass[parameters_size + 1] = ota_password;
 #ifdef USE_MAC_AS_GATEWAY_NAME
 #  undef WifiManager_ssid
@@ -204,24 +202,11 @@ bool connectedOnce = false; //indicate if we have been connected once to MQTT
 bool connected = false; //indicate whether we are currently connected. Used to detected re-connection
 int failure_number_ntwk = 0; // number of failure connecting to network
 int failure_number_mqtt = 0; // number of failure connecting to MQTT
-#ifdef ZmqttDiscovery
-bool disc = true; // Auto discovery with Home Assistant convention
-unsigned long lastDiscovery = 0; // Time of the last discovery to trigger automaticaly to off after DiscoveryAutoOffTimer
-#endif
+
 unsigned long timer_led_measures = 0;
 static void* eClient = nullptr;
 static unsigned long last_ota_activity_millis = 0;
 #if defined(ESP8266) || defined(ESP32)
-#  include <vector>
-// Flags definition for white list, black list, discovery management
-#  define device_flags_init     0 << 0
-#  define device_flags_isDisc   1 << 0
-#  define device_flags_isWhiteL 1 << 1
-#  define device_flags_isBlackL 1 << 2
-#  define device_flags_connect  1 << 3
-#  define isWhite(device)       device->isWhtL
-#  define isBlack(device)       device->isBlkL
-#  define isDiscovered(device)  device->isDisc
 
 static bool mqtt_secure = MQTT_SECURE_DEFAULT;
 static bool mqtt_cert_validate = MQTT_CERT_VALIDATE_DEFAULT;
@@ -255,9 +240,7 @@ static bool esp32EthConnected = false;
 #  include <WiFiClientSecure.h>
 #  include <WiFiMulti.h>
 WiFiMulti wifiMulti;
-#  include <Preferences.h>
 #  include <WiFiManager.h>
-Preferences preferences;
 #  ifdef MDNS_SD
 #    include <ESPmDNS.h>
 #  endif
@@ -284,9 +267,6 @@ ESP8266WiFiMulti wifiMulti;
 #  include <Ethernet.h>
 #endif
 
-#define convertTemp_CtoF(c) ((c * 1.8) + 32)
-#define convertTemp_FtoC(f) ((f - 32) * 5 / 9)
-
 // client link to pubsub MQTT
 PubSubClient client;