FP3: overlay: Remove old configuration and use new config for MMTEL/RCS

Remove the old config_ims_package device config and configure the
new MMTEL and RCS configurations in Telephony instead. Also,
configure the RcsService to be the default RCS service.

Bug: 111305845
Test: make checkbuild
Change-Id: I0d709b8248f1c40f0a5b50ec799396706eeadd65