Apply some tweaks based on 2.0.x

Marlin/Conditionals_LCD.h

@@ -206,6 +206,9 @@
   #ifndef ENCODER_STEPS_PER_MENU_ITEM
     #define ENCODER_STEPS_PER_MENU_ITEM STD_ENCODER_STEPS_PER_MENU_ITEM
   #endif
+  #ifndef ENCODER_FEEDRATE_DEADZONE
+    #define ENCODER_FEEDRATE_DEADZONE 6
+  #endif
 
   // Shift register panels
   // ---------------------

Marlin/pins_AZTEEG_X3.h

@@ -50,6 +50,9 @@
 //
 // LCD / Controller
 //
+#undef STAT_LED_RED_PIN
+#undef STAT_LED_BLUE_PIN
+
 #if ENABLED(VIKI2) || ENABLED(miniVIKI)
 
   #undef DOGLCD_A0
@@ -59,8 +62,6 @@
   #define DOGLCD_CS         32
   #define BTN_ENC           12
 
-  #undef STAT_LED_RED_PIN
-  #undef STAT_LED_BLUE_PIN
   #define STAT_LED_RED_PIN  64
   #define STAT_LED_BLUE_PIN 63