NukiBridge.py, Doorlock.py: Remove print statements

Remove some debug print statements or convert it to log.debug()
Signed-off-by: Thomas Schmid <tom@lfence.de>

pydoorlock/Doorlock.py

@@ -128,7 +128,6 @@ class DoorHandler:
         self.run_hooks = cfg.boolean('RUN_HOOKS')
 
         backend_type = cfg.str("BACKEND_TYPE", "backend")
-        print(backend_type)
         if not backend_type:
             log.error("No backend configured")
             raise RuntimeError()

pydoorlock/NukiBridge.py

@@ -113,7 +113,7 @@ class NukiBridge(DoorlockBackend):
                 continue
 
             self.current_state = state
-            print(state)
+            log.debug(f"Nuki reported state: {state}")
             time.sleep(10)
 
     def set_state(self, state):