Revert "Fix `TextInputSource` reactivating when switching between textboxes"
Revert "Fix `TextInputSource` reactivating when switching between textboxes"

This reverts commit eee6c6f37635026383927909561b2fead0bac89a.

smoogipooo/osu-framework,peppy/osu-framework,peppy/osu-framework,smoogipooo/osu-framework,ppy/osu-framework,peppy/osu-framework,ppy/osu-framework,ppy/osu-framework