Bluetooth: Use enableRule instead of BTAdapterUtils

The BTAdapterUtils were known to be flaky.
We recently fixed it and updating the usage.

In this case it looks like it is preferable to use the Enable rule

Bug: 339585576
Test: atest CtsPermissionUiTestCases
Test: atest CtsBluetoothTestCases
Flag: TEST_ONLY
Change-Id: I117e872a06fb210686fe6a1f9df90483677eb4de
1 file changed