Revert "Telephony overlay, update icons to kitkat"

This reverts commit f33649579c1206d308c3e52adc72bf58565c5c45.
Telephony overlay, update icons to kitkat
follow up https://github.com/rascarlo/android_packages_services_telephony/commit/aff79d25304592f3478076117f22b802e580b96d