🔧 Check Delta homing direction (MarlinFirmware#24865)

Author: EvilGremlin

Marlin/src/inc/SanityCheck.h

@@ -1644,8 +1644,8 @@ static_assert(Y_MAX_LENGTH >= Y_BED_SIZE, "Movement bounds (Y_MIN_POS, Y_MAX_POS
  * Delta requirements
  */
 #if ENABLED(DELTA)
-  #if NONE(USE_XMAX_PLUG, USE_YMAX_PLUG, USE_ZMAX_PLUG)
-    #error "You probably want to use Max Endstops for DELTA!"
+  #if ANY(X_HOME_TO_MIN, Y_HOME_TO_MIN, Z_HOME_TO_MIN)
+    #error "DELTA kinematics require homing "XYZ" axes to MAX. Set [XYZ]_HOME_DIR to 1."
   #elif ENABLED(ENABLE_LEVELING_FADE_HEIGHT) && DISABLED(AUTO_BED_LEVELING_BILINEAR) && !UBL_SEGMENTED
     #error "ENABLE_LEVELING_FADE_HEIGHT on DELTA requires AUTO_BED_LEVELING_BILINEAR or AUTO_BED_LEVELING_UBL."
   #elif ENABLED(DELTA_AUTO_CALIBRATION) && !(HAS_BED_PROBE || HAS_MARLINUI_MENU)