Remove uprev logic from full builds as they should not run cros_mark_as_stable.
Remove uprev logic from full builds as they should not run cros_mark_as_stable.

BUG=chromium-os:15535
TEST=Unittests

Change-Id: Ie52a35d0b462ef82c378c3056c643433fc109138
Reviewed-on: http://gerrit.chromium.org/gerrit/968
Reviewed-by: Chris Sosa <959d3d631fb6f17f1b07f751372041a1edb210d1@chromium.org>
Tested-by: Chris Sosa <959d3d631fb6f17f1b07f751372041a1edb210d1@chromium.org>

zhang0137/chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,coreos/chromite,coreos/chromite,zhang0137/chromite,coreos/chromite,zhang0137/chromite,bpsinc-native/src_third_party_chromite