Remove EXPERIMENTAL = True from all non-BVT tests.

The EXPERIMENTAL setting is being deprecated; the setting is a no-op
when the test isn't in the BVT and isn't in a suite with `file_bugs`
set to True.  This removes the EXPERIMENTAL setting from control
files where the setting has no effect.

BUG=None
TEST=None

Change-Id: I8cd263fe7310f6e255d414c049458ee3458c79f9
Reviewed-on: https://chromium-review.googlesource.com/198430
Reviewed-by: Simran Basi <sbasi@chromium.org>
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Commit-Queue: Richard Barnette <jrbarnette@chromium.org>
121 files changed