Revert "Expose KEY_CARRIER_DEFAULT_WFC_IMS_{ROAMING_,}MODE_INT"

This reverts commit 3284e35061f74d39e23039c8ae3cf2adc9af4415.

Reason for revert: breaks most branches

Bug: 112867975
Change-Id: Icb27e193529f523f4cf07ef55e19625c402a2d3b
2 files changed