Revert "Telephony: implement noise suppression for phone calls (2/2)"

This reverts commit e8912959b5ede0ed5e1ddadf97ed58773ba7ec1e.

Already in https://github.com/AOSPAL/android_packages_services_Telephony/commit/057b7aac4352841cb17fda0dd83ce44f6a22904f