Since Sebastian fixed PHPUnit we can now revert this temporary fix

Reverts: #64473
Resolves: #64486
Releases: master, 6.2

This reverts commit 13f417f9.

Change-Id: If19aed70b6ac30fe61dbbd837fd674fa3bd1aa19
Reviewed-on: http://review.typo3.org/36243


Reviewed-by: Mathias Schreiber <mathias.schreiber@wmdb.de>
Tested-by: Mathias Schreiber <mathias.schreiber@wmdb.de>