100setupTestingInterface: Stop accepting DHCP hostname

The removed line in this patch let shill accept hostname from DHCP on
the pseudoethernet0 interface. The test relying on it has been removed
and we are going to remove this feature in shill.

BUG=b:229349972
TEST=CQ

Change-Id: Id978d003978a903094b57710fb4cf7e340dc061e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosutils/+/3597333
Tested-by: Jie Jiang <jiejiang@chromium.org>
Reviewed-by: Alex Klein <saklein@chromium.org>
Commit-Queue: Jie Jiang <jiejiang@chromium.org>
1 file changed