ls970-common: remove e975 from conn_init make fragment, it has its own

This fixes a build fail when both ls970-common and e975 device trees are
checked out at the same time.

Change-Id: I2d1bb6c82fae15453e4ed7b22bae9a8da594fcea
ril: Remove outdated blocks

These were dependencies for a chunk that's been commented out since forever,
and they can be removed
Rebase to be against gproj-common

Change-Id: I06096f1d8bc3740eb9cc1d25962398c77a6e6807