Tweak bed leveling conditionals

Marlin/src/inc/Conditionals_post.h

@@ -820,12 +820,12 @@
   #define UBL_DELTA  (ENABLED(AUTO_BED_LEVELING_UBL) && (ENABLED(DELTA) || ENABLED(UBL_GRANULAR_SEGMENTATION_FOR_CARTESIAN)))
   #define ABL_PLANAR (ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_3POINT))
   #define ABL_GRID   (ENABLED(AUTO_BED_LEVELING_LINEAR) || ENABLED(AUTO_BED_LEVELING_BILINEAR))
-  #define HAS_ABL    (ABL_PLANAR || ABL_GRID || ENABLED(AUTO_BED_LEVELING_UBL))
+  #define OLDSCHOOL_ABL         (ABL_PLANAR || ABL_GRID)
+  #define HAS_ABL               (OLDSCHOOL_ABL || ENABLED(AUTO_BED_LEVELING_UBL))
   #define HAS_LEVELING          (HAS_ABL || ENABLED(MESH_BED_LEVELING))
   #define HAS_AUTOLEVEL         (HAS_ABL && DISABLED(PROBE_MANUALLY))
-  #define OLDSCHOOL_ABL (HAS_ABL && DISABLED(AUTO_BED_LEVELING_UBL))
   #define HAS_MESH              (ENABLED(AUTO_BED_LEVELING_BILINEAR) || ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(MESH_BED_LEVELING))
-  #define PLANNER_LEVELING      (ABL_PLANAR || ABL_GRID || ENABLED(MESH_BED_LEVELING) || UBL_DELTA)
+  #define PLANNER_LEVELING      (OLDSCHOOL_ABL || ENABLED(MESH_BED_LEVELING) || UBL_DELTA)
   #define HAS_PROBING_PROCEDURE (HAS_ABL || ENABLED(Z_MIN_PROBE_REPEATABILITY_TEST))
   #if HAS_PROBING_PROCEDURE
     #define PROBE_BED_WIDTH abs(RIGHT_PROBE_BED_POSITION - (LEFT_PROBE_BED_POSITION))

Marlin/src/inc/SanityCheck.h

@@ -651,7 +651,7 @@ static_assert(1 >= 0
   /**
    * Require some kind of probe for bed leveling and probe testing
    */
-  #if HAS_ABL && DISABLED(AUTO_BED_LEVELING_UBL)
+  #if OLDSCHOOL_ABL
     #error "Auto Bed Leveling requires one of these: PROBE_MANUALLY, FIX_MOUNTED_PROBE, BLTOUCH, SOLENOID_PROBE, Z_PROBE_ALLEN_KEY, Z_PROBE_SLED, or a Z Servo."
   #endif