feat(identity): align auth flow with reference theme

src/Admin/UserController.php

@@ -9,8 +9,6 @@ defined('ABSPATH') || exit;
 
 class UserController extends ControllerBase {
     use UserControllerReportOperations;
-    use UserControllerVerifyIntegrations;
-    use UserControllerIdentitySettings;
     use UserControllerAuthPhoneOperations;
     use UserControllerRestrictionOperations;
     use UserControllerFollowOperations;
@@ -234,25 +232,6 @@ class UserController extends ControllerBase {
             'permission_callback' => '__return_true',
         ]);
 
-        // Identity verification provider settings (admin only)
-        register_rest_route(self::API_NAMESPACE, '/identity/settings', [
-            [
-                'methods'             => 'GET',
-                'callback'            => [$this, 'get_identity_settings'],
-                'permission_callback' => [$this, 'check_permission'],
-            ],
-            [
-                'methods'             => 'POST',
-                'callback'            => [$this, 'update_identity_settings'],
-                'permission_callback' => [$this, 'check_permission'],
-            ],
-        ]);
-        register_rest_route(self::API_NAMESPACE, '/identity/settings/test', [
-            'methods'             => 'POST',
-            'callback'            => [$this, 'test_identity_settings'],
-            'permission_callback' => [$this, 'check_permission'],
-        ]);
-
         // SMS provider status
         register_rest_route(self::API_NAMESPACE, '/sms/status', [
             'methods'             => 'GET',