Remove Dialer Backup and Restore Code

We want to clean up all the Dialer Backup and Restore. This includes the existing Dolly backup code for settings/preferences (causes a crash) and the Hangouts K/V Backup (does not work).
The idea is to just have a clean simple K/V backup and restore for dialer, which will be in a follow up CL.

Bug: 64363054
Test: Manual. Builds successfully.
PiperOrigin-RevId: 164225991
Change-Id: Ic71cfaeed37a5c9f0002d8d12db757f19c0ddf1e
8 files changed
tree: de46e04ab0671e74cfd97f1f2a13c4efa54ba818
  1. assets/
  2. java/
  3. Android.mk
  4. AndroidManifest.xml
  5. LICENSE