Fix module in order to don't show "changed" status when running ansible playbook with authorized_key module if keys are not different

plugins/modules/authorized_key.py

@@ -618,9 +618,12 @@ def enforce_state(module, params):
     # for 'exclusive', make sure keys are written in the order the new keys were
     if state == "present" and exclusive:
         to_remove = frozenset(existing_keys).difference(keys_to_exist)
+        if len(to_remove) != 0:
             for key in to_remove:
                 del existing_keys[key]
                 do_write = True
+        else:
+            do_write = False
 
     if do_write:
         filename = keyfile(module, user, do_write, path, manage_dir, follow)