Clear account using TelecomManager not CallsManager.

TelecomManager is the right way to handle this since this
code could run as the second user.  It gets the system Telecom
service and calls a method on it to do its work.

Bug: 17689845
Change-Id: I2895e2f386e5bb97f6de67140c4f2dc4c4403b15
1 file changed