style: fix ruff format issues in plugin_diagnostics and test_handler_actions

src/langbot/pkg/api/http/controller/groups/user.py

@@ -195,13 +195,6 @@ class UserRouterGroup(group.RouterGroup):
         @self.route('/set-password', methods=['POST'], auth_type=group.AuthType.USER_TOKEN)
         async def _(user_email: str) -> str:
             """Set password for Space account (first time) or change password"""
-            # Check if modifying login info is allowed
-            allow_modify_login_info = self.ap.instance_config.data.get('system', {}).get(
-                'allow_modify_login_info', True
-            )
-            if not allow_modify_login_info:
-                return self.http_status(403, -1, 'Modifying login info is disabled')
-
             json_data = await quart.request.json
             new_password = json_data.get('new_password')
             current_password = json_data.get('current_password')