Fix G53 as prefix, G28 with CNC_COORDINATE_SYSTEMS (#15069)

Marlin/src/module/motion.cpp

@@ -1325,11 +1325,6 @@ void set_axis_is_at_home(const AxisEnum axis) {
   SBI(axis_known_position, axis);
   SBI(axis_homed, axis);
 
-  #if HAS_POSITION_SHIFT
-    position_shift[axis] = 0;
-    update_workspace_offset(axis);
-  #endif
-
   #if ENABLED(DUAL_X_CARRIAGE)
     if (axis == X_AXIS && (active_extruder == 1 || dual_x_carriage_mode == DXC_DUPLICATION_MODE)) {
       current_position[X_AXIS] = x_home_pos(active_extruder);