Revert "Fix permission on TM#isDataEnabled"

This reverts commit f7dc3f6788d6ca53663d457a545b9de880e3cf02.

Reason for revert: b/176163590, continual fatal exceptions in telephony on reboot
Bug: 176163590
Test: Local revert and the fatal exceptions go away

Change-Id: If7cbe3e5b8764f0ee72985830880157f64d71101
2 files changed