PLT-6268 Clear blue bar correctly when removing expiring license (#6247)
PLT-6268 Clear blue bar correctly when removing expiring license (#6247)

* Don't sanitize license for system admin

* Clear blue bar error whe removing expiring license

* Fix unit test

rickbatka/mattermost-webapp,rickbatka/mattermost-webapp,rickbatka/mattermost-webapp,rickbatka/mattermost-webapp