Refactor Telecomm framework classes into actual framework

Delete Telecomm framework proposal from here as it is being moved to the
actual framework (see http://ag/467620). Refactor Telephony classes to
use the framework from its new location.

Change-Id: I2ecf85677c76f5e25fdd0b7b0f91d1c7a3c6600b
12 files changed