Revert "Telephony overlay, update icons to kitkat"

This reverts commit 505530e79368c73e10cce1c683b43126832fb6c7.
Telephony overlay, update icons to kitkat
follow up https://github.com/rascarlo/android_packages_services_telephony/commit/aff79d25304592f3478076117f22b802e580b96d