Establish MQTT connection only from MQTT::runOnce (#6057)

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/mesh/wifi/WiFiAPClient.cpp

@@ -7,9 +7,6 @@
 
 #include "main.h"
 #include "mesh/api/WiFiServerAPI.h"
-#if !MESHTASTIC_EXCLUDE_MQTT
-#include "mqtt/MQTT.h"
-#endif
 #include "target_specific.h"
 #include <WiFi.h>
 #include <WiFiUdp.h>
@@ -111,12 +108,6 @@ static void onNetworkConnected()
 #endif
         APStartupComplete = true;
     }
-
-    // FIXME this is kinda yucky, instead we should just have an observable for 'wifireconnected'
-#ifndef MESHTASTIC_EXCLUDE_MQTT
-    if (mqtt)
-        mqtt->reconnect();
-#endif
 }
 
 static int32_t reconnectWiFi()