Remove mock files

We are moving to a per-function mock mechanism, which is less likely to
break when someone adds a function to a file with a mock.

BUG=chrome-os-partner:18598
TEST=None
BRANCH=None

Change-Id: Ie625064730d2224accbaf1febbdc4750e793d047
Signed-off-by: Vic Yang <victoryang@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/49451
1 file changed