Clear up HAS_WORKSPACE_OFFSET meaning

Marlin/src/inc/Conditionals_post.h

 // Updated G92 behavior shifts the workspace
 #define HAS_POSITION_SHIFT DISABLED(NO_WORKSPACE_OFFSETS)
 // The home offset also shifts the coordinate space
-#define HAS_HOME_OFFSET (DISABLED(NO_WORKSPACE_OFFSETS) && DISABLED(DELTA))
-// Either offset yields extra calculations on all moves
-#define HAS_WORKSPACE_OFFSET (HAS_POSITION_SHIFT || HAS_HOME_OFFSET)
-// M206 doesn't apply to DELTA
-#define HAS_M206_COMMAND (HAS_HOME_OFFSET && DISABLED(DELTA))
+#define HAS_HOME_OFFSET (DISABLED(NO_WORKSPACE_OFFSETS) && (IS_SCARA || IS_CARTESIAN))
+// Cumulative offset to workspace to save some calculation
+#define HAS_WORKSPACE_OFFSET (HAS_POSITION_SHIFT && HAS_HOME_OFFSET)
+// M206 sets the home offset for Cartesian machines
+#define HAS_M206_COMMAND (HAS_HOME_OFFSET && !IS_SCARA)
 
 // LCD timeout to status screen default is 15s
 #ifndef LCD_TIMEOUT_TO_STATUS

Marlin/src/module/motion.cpp

  * The workspace can be offset by some commands, or
  * these offsets may be omitted to save on computation.
  */
-#if HAS_WORKSPACE_OFFSET
-  #if HAS_POSITION_SHIFT
-    // The distance that XYZ has been offset by G92. Reset by G28.
-    float position_shift[XYZ] = { 0 };
-  #endif
-  #if HAS_HOME_OFFSET
-    // This offset is added to the configured home position.
-    // Set by M206, M428, or menu item. Saved to EEPROM.
-    float home_offset[XYZ] = { 0 };
-  #endif
-  #if HAS_HOME_OFFSET && HAS_POSITION_SHIFT
-    // The above two are combined to save on computes
-    float workspace_offset[XYZ] = { 0 };
-  #endif
+#if HAS_POSITION_SHIFT
+  // The distance that XYZ has been offset by G92. Reset by G28.
+  float position_shift[XYZ] = { 0 };
+#endif
+#if HAS_HOME_OFFSET
+  // This offset is added to the configured home position.
+  // Set by M206, M428, or menu item. Saved to EEPROM.
+  float home_offset[XYZ] = { 0 };
+#endif
+#if HAS_HOME_OFFSET && HAS_POSITION_SHIFT
+  // The above two are combined to save on computes
+  float workspace_offset[XYZ] = { 0 };
 #endif
 
 #if OLDSCHOOL_ABL
    * at the same positions relative to the machine.
    */
   void update_software_endstops(const AxisEnum axis) {
-    #if HAS_HOME_OFFSET && HAS_POSITION_SHIFT
+    #if HAS_HOME_OFFSET
       workspace_offset[axis] = home_offset[axis] + position_shift[axis];
     #endif
 

Marlin/src/module/motion.h

   void sensorless_homing_per_axis(const AxisEnum axis, const bool enable=true);
 #endif
 
-//
-// Macros
-//
-
 /**
  * Workspace offsets
  */
-#if HAS_WORKSPACE_OFFSET
+#if HAS_HOME_OFFSET || HAS_POSITION_SHIFT
   #if HAS_HOME_OFFSET
     extern float home_offset[XYZ];
   #endif
     #define WORKSPACE_OFFSET(AXIS) workspace_offset[AXIS]
   #elif HAS_HOME_OFFSET
     #define WORKSPACE_OFFSET(AXIS) home_offset[AXIS]
-  #elif HAS_POSITION_SHIFT
+  #else
     #define WORKSPACE_OFFSET(AXIS) position_shift[AXIS]
   #endif
   #define NATIVE_TO_LOGICAL(POS, AXIS) ((POS) + WORKSPACE_OFFSET(AXIS))