Temporarily remove tests added in I8eef5a165

Although the tests themselves pass, their introduction to the codebase pushed
the total number of tests past some threshold at which Jenkins starts
segfaulting. So remove the tests as a temporary workaround, and revert this
patch once the bug with Wikimedia's Jenkins deployment (bug 43972) is resolved.

Change-Id: I5722faf0e4216e1c1f98ecc1f2dba744b240b7d3