Remove vvm dependence on AccountManager, save values in shared prefs.

Instead of using the sync adapter and accounts framework,
use an intent service for syncing and shared preferences for saving
the IMAP login values. This solves the phantom account problem.
* Renamed OmtpVvmSyncAccountManager to OmtpVvmSourceManager
* Moved carrier-specific code in SimChangeReceiver to
  OmtpVvmCarrierConfigHelpoer

Bug: 20057303
Change-Id: I79347849d63bd7907df2e9aac9a14e7311215fe1
13 files changed