This method was moved in CE:

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/14528

And in EE we're extending it with: `find_user_by_job_token`

lib/api/api_guard.rb

@@ -48,7 +48,8 @@ module API
         user =
           find_user_from_private_token ||
           find_user_from_oauth_token ||
-          find_user_from_warden
+          find_user_from_warden ||
+          find_user_by_job_token
 
         return nil unless user
 

lib/api/helpers.rb

@@ -429,20 +429,6 @@ module API
       end
     end
 
-    def find_current_user
-      user =
-        find_user_by_private_token(scopes: scopes_registered_for_endpoint) ||
-        doorkeeper_guard(scopes: scopes_registered_for_endpoint) ||
-        find_user_from_warden ||
-        find_user_by_job_token
-
-      return nil unless user
-
-      raise UnauthorizedError unless Gitlab::UserAccess.new(user).allowed? && user.can?(:access_api)
-
-      user
-    end
-
     def sudo!
       return unless sudo_identifier
       return unless initial_current_user