Backport parameters for API::Users

This backports the EE specific parameters for API::Users, and wraps them
in a conditional.

lib/api/users.rb

@@ -52,9 +52,10 @@ module API
           optional :private_profile, type: Boolean, desc: 'Flag indicating the user has a private profile'
           all_or_none_of :extern_uid, :provider
 
-          # EE
+          if Gitlab.ee?
             optional :shared_runners_minutes_limit, type: Integer, desc: 'Pipeline minutes quota for this user'
           end
+        end
 
         params :sort_params do
           optional :order_by, type: String, values: %w[id name username created_at updated_at],
@@ -84,9 +85,10 @@ module API
         use :pagination
         use :with_custom_attributes
 
-        # EE
+        if Gitlab.ee?
           optional :skip_ldap, type: Boolean, default: false, desc: 'Skip LDAP users'
         end
+      end
       # rubocop: disable CodeReuse/ActiveRecord
       get do
         authenticated_as_admin! if params[:external].present? || (params[:extern_uid].present? && params[:provider].present?)