[CLEANUP] #1535 Stop defining constants in unit tests

Change-Id: Iecde1954339170f8b957659f6bfe4d8f2d70dd7d
Reviewed-on: http://review.typo3.org/34699
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>