Remove dismiss-rtl setters because dismiss is bidirectional

Fixes: 204127880
Test: dismiss notifs; change RTL; dismiss more
Merged-In: Ia3e0c80a1bfb81f039c6409718d5fbeced455939
Change-Id: Ia3e0c80a1bfb81f039c6409718d5fbeced455939
5 files changed