These styles seem to be used when using AngularJS;
https://docs.angularjs.org/api/ng/directive/ngCloak
> The ngCloak directive is used to prevent the AngularJS html template from
> being briefly displayed by the browser in its raw (uncompiled) form while
> your application is loading. Use this directive to avoid the undesirable
> flicker effect caused by the html template display.
And I don't think that's used anywhere currently, so let's remove
Also removing some other ng-xx classes
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>