Revert "Make login_CryptohomeTelemetry non-experimental."

This reverts commit 09e5a437022d787bb11932f67ac8000bf06524b6.

Reason: 
ChromiumOS builders are failing, eg,
http://build.chromium.org/p/chromium.chromiumos/builders/ChromiumOS%20%28x86%29/builds/19049

Change-Id: Ifacddaf45247074907abc4b05c911effe6c1287a
Reviewed-on: https://chromium-review.googlesource.com/181943
Reviewed-by: Jenny Zhang <jennyz@chromium.org>
Tested-by: Achuith Bhandarkar <achuith@chromium.org>
1 file changed