Revert "[Contextual Edu] Fix repository unit test"

This reverts commit 968c450d.

Reason for revert: DroidMonitor: Potential culprit for http://b/389882040 - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: I0cf49dbceb602300d9ab505c386b5df877720377