Revert "Move strings"

This reverts commit 9b9e03d0aa725931f845407cde9993d340170f2b.
Revert "Add SMS Middleware layer."

This reverts commit 1c823bc17f5615b9515637ebaad72c53f4fc5d9b.
Revert "Fix RIL_UNSOL_CDMA_PRL_CHANGED constant typo (1/2)"

This reverts commit de3ff4a10d3f8af4316a76bb15fe88b5794a4920.