CRAS: udev - remove unused include.
CRAS: udev - remove unused include.

BUG=none
TEST=builds

Change-Id: Ic42baf9e8fe4aca7d6ff2224b59cf2f8c498d0ea
Signed-off-by: Dylan Reid <c791bfe44996c1eed9c7149a0c5f12a86d58eb85@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/37209
Reviewed-by: Hsinyu Chao <8b91762bdbe27d3121b311091d7ca5125e9a8df6@chromium.org>

drinkcat/adhd,drinkcat/adhd,drinkcat/adhd,drinkcat/adhd,drinkcat/adhd,drinkcat/adhd