Revert "chromeos_config: mark wizpig, reef, reef-uni experimental"

This reverts commit efb85837f82850d32dc3f5a55438181988169054.

Reason for revert: reef and reef-uni are not broken at ToT: Snappy/Alan/Bigdaddy are going to DVT/Factory this week and need to have new regressions checked in because we don't have coverage. The one breakage in reef-uni recently is another example of the USB dongle problem.

Original change's description:
> chromeos_config: mark wizpig, reef, reef-uni experimental
>
> The tree status is intended to mark things as experimental for the short
> term. These boards have been continuously experimental for over a week.
> Moving the flag to config.
>
> BUG=chromium:765686
> TEST=None
>
> Change-Id: I70a67b3885cf11a9443f5b808aa99dcd7a795e62
> Reviewed-on: https://chromium-review.googlesource.com/742101
> Commit-Ready: Aviv Keshet <akeshet@chromium.org>
> Tested-by: Aviv Keshet <akeshet@chromium.org>
> Reviewed-by: Prathmesh Prabhu <pprabhu@chromium.org>

Bug: chromium:765686
Change-Id: I0481f984728fac5011a5a590605d67efc39cafc7
Reviewed-on: https://chromium-review.googlesource.com/749169
Commit-Ready: Jason Clinton <jclinton@chromium.org>
Tested-by: Jason Clinton <jclinton@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: C Shapiro <shapiroc@google.com>
2 files changed