Revert "Merge "Changing .gitreview to use the stable/helium branch" into stable/helium"

This reverts commit dcf74c6eb0288b96af2ea5aa83bda27d383241a7, reversing
changes made to c3c441a58e940e26f736e850f8b44d96e791ac49.

Change-Id: I69eb8f6daae7553c12cd8c8c29bf3a6bea9cd3db
Signed-off-by: Luis Gomez <ecelgp@gmail.com>