[autotest] remove "unit"test which just checks for a directory to exist

This test doesn't make sense as a unit test, and is breaking when run
inside the chroot.

BUG=chromium:221254
TEST=Test passes inside chroot
CQ-DEPEND=CL:I4b2123ae691bd371f983026ef991bebf60fd5e7b

Change-Id: Ic5535de6c834eb6c8cb6730490c4bfb1ac37cb11
Reviewed-on: https://gerrit.chromium.org/gerrit/59603
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
1 file changed