[skip ci] Fix/demote testcases (#29497)

e2e-tests/cypress/tests/integration/channels/enterprise/auth_sso/mfa_authentication_spec.ts

@@ -7,7 +7,6 @@
 // - Use element ID when selecting an element. Create one if none.
 // ***************************************************************
 
-// Stage: @prod
 // Group: @channels @enterprise @system_console @authentication @mfa
 
 import {UserProfile} from '@mattermost/types/users';