DELTA should ignore Z_SAFE_HOMING

Marlin/Conditionals_post.h

@@ -146,6 +146,13 @@
     #define Z_SAFE_HOMING
   #endif
 
+  /**
+   * DELTA should ignore Z_SAFE_HOMING
+   */
+  #if ENABLED(DELTA)
+    #undef Z_SAFE_HOMING
+  #endif
+
   /**
    * Safe Homing Options
    */