fix previous attempt

Marlin/Configuration.h

  *      - normally-closed switches to GND and D32.
  *      - normally-open switches to 5V and D32.
  */
-#define Z_MIN_PROBE_PIN Z_MAX_PIN // Pin 32 is the RAMPS default
-
+//define Z_MIN_PROBE_PIN Z_MAX_PIN // Pin 32 is the RAMPS default
+#define Z_MIN_PROBE_PIN 32
 /**
  * Probe Type
  *