[automerger skipped] Merge "Remove unused telephony api files." am: bff73060 am: edc0fa3f -s ours

am skip reason: Change-Id Ie91e11a23988729a63b6bf6a7ba965552b241748 with SHA-1 db305ea9 is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1477537

Change-Id: I7d1dd70360ddd4f1e85fae080367c50a99967bfa