This module was recently moved from bin/ and the execute bit stuck
around and wasn't imported by our test suite - which throws off
accountability in coverage reporting.
Remove the execute bit and add a placeholder unittest module.
Related-Change-Id: Ie0d52a1a54fc152bb72cbb3f84dcc36a8dad972a
Change-Id: Id9e678c2460cc889f682c5566a4418160db7878f