[backbone.layoutmanager] Remove unused lint exceptions (#47970)
[backbone.layoutmanager] Remove unused lint exceptions (#47970)


mcliment/DefinitelyTyped,markogresak/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped,georgemarshall/DefinitelyTyped