Revert "smdk4412: activate dormant governors"

Adaptive is causing all sorts of issues, including spontaneous reboots (esp. in recovery) due to hung task timeouts on basically any device that doesn't have it set to default.

We'll want conservative across the board, we'll reenable that once we fix hotplugging on 4412 devices...

This reverts commit dcecf56b6e77948cf2db8a661c57d5480fa2a268.

Change-Id: I837273e4b16ebf024876a1bd09a54893e05413f4