Revert "Unhide enable_apps carrier config key."

This reverts commit 4793b28d3f2a65492aa7049c5e6e77c1cdbbb1a3.

Reason for revert: This is not intended as a public API.

Bug: 62907095
Test: make
Change-Id: Id79f91c72eac3929fa5ee7ac1cdd9df8671a1eb1
(cherry picked from commit f47a426206cd89d49df8369eaa98a685365a62ed)
2 files changed