test_lists: Remove generic_rrt test list.

The generic_rrt is not really used by any projects still using this
factory branch and is causing misleading error messages.

BUG=b:78485183
TEST=None

Change-Id: Id4991394f33837a5336f41e72b931a4222ca7156
Reviewed-on: https://chromium-review.googlesource.com/1025235
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Trybot-Ready: Hung-Te Lin <hungte@chromium.org>
1 file changed