Revert "Telephony: Add blacklist elements"

This reverts commit 5f0d331b592388098f6f4a80c344597531243b57.
Revert "util: Add BlacklistUtils"

This reverts commit 1e574ae61e1dcf6a6f385ec5546381171320d939.
Revert "cdma: Restore SVDO after merge."

This reverts commit 939f35d2373d2434bca369f3c28b9a53025e91cf.