Easier to disable homing validation (#11458)

Marlin/src/module/endstops.cpp

   #endif
 }
 
-// If the last move failed to trigger an endstop, call kill
-void Endstops::validate_homing_move() {
-  if (trigger_state()) hit_on_purpose();
-  else kill(PSTR(MSG_ERR_HOMING_FAILED));
-}
+#if ENABLED(VALIDATE_HOMING_ENDSTOPS)
+  // If the last move failed to trigger an endstop, call kill
+  void Endstops::validate_homing_move() {
+    if (trigger_state()) hit_on_purpose();
+    else kill(PSTR(MSG_ERR_HOMING_FAILED));
+  }
+#endif
 
 // Enable / disable endstop z-probe checking
 #if HAS_BED_PROBE

Marlin/src/module/endstops.h

 #include "../inc/MarlinConfig.h"
 #include <stdint.h>
 
+#define VALIDATE_HOMING_ENDSTOPS
+
 enum EndstopEnum : char {
   X_MIN,
   Y_MIN,
     // Disable / Enable endstops based on ENSTOPS_ONLY_FOR_HOMING and global enable
     static void not_homing();
 
-    // If the last move failed to trigger an endstop, call kill
-    static void validate_homing_move();
+    #if ENABLED(VALIDATE_HOMING_ENDSTOPS)
+      // If the last move failed to trigger an endstop, call kill
+      static void validate_homing_move();
+    #else
+      FORCE_INLINE static void validate_homing_move() { hit_on_purpose(); }
+    #endif
 
     // Clear endstops (i.e., they were hit intentionally) to suppress the report
     FORCE_INLINE static void hit_on_purpose() { hit_state = 0; }