Undefine sanity check tests when done

Marlin/src/inc/SanityCheck.h

 #if !defined(CONFIGURATION_ADV_H_VERSION) || HEXIFY(CONFIGURATION_ADV_H_VERSION) < HEXIFY(REQUIRED_CONFIGURATION_ADV_H_VERSION)
   #error "You are using an old Configuration_adv.h file, update it before building Marlin."
 #endif
+#undef HEXIFY
 
 /**
  * Warnings for old configurations
 #elif MB(FORMBOT_TREX2)
   #error "FORMBOT_TREX2 has been renamed BOARD_FORMBOT_TREX2PLUS. Please update your configuration."
 #endif
+#undef BOARD_MKS_13
+#undef BOARD_TRIGORILLA
+#undef BOARD_RURAMPS4D
+#undef BOARD_FORMBOT_TREX2
 
 /**
  * Marlin release, version and default string
     #error "NEOPIXEL_LED requires NEOPIXEL_PIN and NEOPIXEL_PIXELS."
   #endif
 #endif
+#undef _RGB_TEST
 
 /**
  * Auto Fan check for PWM pins
     #error "SENSORLESS_HOMING requires Z_MAX_ENDSTOP_INVERTING and ENDSTOPPULLUP_ZMAX when homing to Z_MAX."
   #elif ENDSTOP_NOISE_THRESHOLD
     #error "SENSORLESS_HOMING is incompatible with ENDSTOP_NOISE_THRESHOLD."
+  #elif !(X_SENSORLESS || Y_SENSORLESS || Z_SENSORLESS)
+    #error "SENSORLESS_HOMING requires a TMC stepper driver with StallGuard on X, Y, or Z axes."
   #endif
 #endif
 
-// Sensorless homing/probing requirements
-#if ENABLED(SENSORLESS_HOMING) && !(X_SENSORLESS || Y_SENSORLESS || Z_SENSORLESS)
-  #error "SENSORLESS_HOMING requires a TMC stepper driver with StallGuard on X, Y, or Z axes."
-#elif BOTH(SENSORLESS_PROBING, DELTA) && !(X_SENSORLESS && Y_SENSORLESS && Z_SENSORLESS)
-  #error "SENSORLESS_PROBING for DELTA requires TMC stepper drivers with StallGuard on X, Y, and Z axes."
-#elif ENABLED(SENSORLESS_PROBING) && !Z_SENSORLESS
-  #error "SENSORLESS_PROBING requires a TMC stepper driver with StallGuard on Z."
+// Sensorless probing requirements
+#if ENABLED(SENSORLESS_PROBING)
+  #if ENABLED(DELTA) && !(X_SENSORLESS && Y_SENSORLESS && Z_SENSORLESS)
+    #error "SENSORLESS_PROBING for DELTA requires TMC stepper drivers with StallGuard on X, Y, and Z axes."
+  #elif !Z_SENSORLESS
+    #error "SENSORLESS_PROBING requires a TMC stepper driver with StallGuard on Z."
+  #endif
 #endif
 
 // Sensorless homing is required for both combined steppers in an H-bot