Revert commit a93bf56 ESP-Now/WiFi static buffers

Using static buffers to fix the ESP-Now multicast issue breaks WiFi. We may need to wait until the ESP32 core incorporates the cfg.cache_tx_buf_num = 4; fix.

Author: nseidle

Firmware/RTK_Surveyor/ESPNOW.ino

@@ -93,7 +93,6 @@ void espnowStart()
   if (wifiState == WIFI_OFF && espnowState == ESPNOW_OFF)
   {
     //Radio is off, turn it on
-    WiFi.useStaticBuffers(true); //Fix for one to many ESP-Now bug, prior to ESP32 core v2.0.4: https://github.com/espressif/esp-idf/issues/8992
     WiFi.mode(WIFI_STA);
 
     esp_wifi_set_protocol(WIFI_IF_STA, WIFI_PROTOCOL_LR);

Firmware/RTK_Surveyor/WiFi.ino

@@ -209,20 +209,15 @@ void wifiStart(char* ssid, char* pw)
 #ifdef COMPILE_WIFI
   if ((wifiState == WIFI_OFF) || (wifiState == WIFI_ON))
   {
+      WiFi.mode(WIFI_STA);
 
 #ifdef COMPILE_ESPNOW
     if (espnowState > ESPNOW_OFF)
     {
-      WiFi.mode(WIFI_MODE_NULL); //We must go Null before setting static buffers
-      WiFi.useStaticBuffers(true); //Fix for one to many ESP-Now bug, prior to ESP32 core v2.0.4: https://github.com/espressif/esp-idf/issues/8992
-      WiFi.mode(WIFI_STA);
-
       esp_wifi_set_protocol(WIFI_IF_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N | WIFI_PROTOCOL_LR); //Enable WiFi + ESP-Now
     }
     else
     {
-      WiFi.mode(WIFI_STA);
-
       esp_wifi_set_protocol(WIFI_IF_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N); //Set basic WiFi protocols
     }
 #else
@@ -266,8 +261,6 @@ void wifiStop()
   //If ESP-Now is active, change protocol to only Long Range
   else if (espnowState > ESPNOW_OFF)
   {
-    WiFi.mode(WIFI_MODE_NULL); //We must go Null before setting static buffers
-    WiFi.useStaticBuffers(true); //Fix for one to many ESP-Now bug, prior to ESP32 core v2.0.4: https://github.com/espressif/esp-idf/issues/8992
     WiFi.mode(WIFI_STA);
 
     // Enable long range, PHY rate of ESP32 will be 512Kbps or 256Kbps