probe: Add a default probing_move() function to HomingViaProbeHelper

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

klippy/extras/bltouch.py

@@ -191,9 +191,6 @@ class BLTouchProbe:
         self.verify_raise_probe()
         self.sync_print_time()
         self.multi = 'OFF'
-    def probing_move(self, pos, speed):
-        phoming = self.printer.lookup_object('homing')
-        return phoming.probing_move(self, pos, speed)
     def probe_prepare(self, hmove):
         if self.multi == 'OFF' or self.multi == 'FIRST':
             self.lower_probe()