Remove known issue about crash with enterprise buttons

Can't repro this anymore.

Change-Id: I74cb730d18105bec6d6e86c3be3f1c5eb7352ded
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>
Reviewed-by: Pasi Keränen <pasi.keranen@digia.com>