homing: Move homing offset adjustment logic to generic homing code

Move the "stepper phase" adjustment logic from the kinematic classes
to the generic homing.py code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/homing.py

@@ -123,6 +123,14 @@ class Homing:
             self.toolhead.set_position(forcepos)
             self.homing_move(movepos, endstops, second_homing_speed,
                              verify_movement=self.verify_retract)
+        # Apply homing offsets
+        for rail in rails:
+            cp = rail.get_commanded_position()
+            rail.set_commanded_position(cp + rail.get_homed_offset())
+        adjustpos = self.toolhead.get_kinematics().calc_position()
+        for axis in homing_axes:
+            movepos[axis] = adjustpos[axis]
+        self.toolhead.set_position(movepos)
     def home_axes(self, axes):
         self.changed_axes = axes
         try: