Remove phone type-specific time detection logic

Remove more time detection logic that appears
to treat NITZ updates differently on non-GSM
devices but only if auto-time is disabled.

The logic only runs if NITZ has been received
so it is assumed unnecessary for device types
that don't support NITZ.

The check was added in commit ec2e4a8f
when Cdma/CdmaLte/Gsm ServiceStateTracker classes
were combined.

Removing the check left a redundant auto-time
check, which has also been removed.

Bug: 63743683
Test: build / boot / see above
Change-Id: I46f81275b3c4103b62527475a957437aa9881824