📝 Obsolete freeze comment (#23964)

Followup to #23944

Marlin/Configuration_adv.h

@@ -4110,7 +4110,6 @@
 
 /**
  * Instant freeze / unfreeze functionality
- * Specified pin has pullup and connecting to ground will instantly pause motion.
  * Potentially useful for emergency stop that allows being resumed.
  */
 //#define FREEZE_FEATURE