Revert AssistManagerGoogle in fw/b.

We are using now:
https://github.com/pixeldust-project-x/android_external_google/tree/ten/SystemUIGoogle/src/com/google/android/systemui/assist

Signed-off-by: spezi77 <spezi7713@gmx.net>
Change-Id: Ia13a6951bec180e82287485c7610c33729f9010c
8 files changed