[BUGFIX] Only perform loadTCA for older versions

Change-Id: I47536620ea1f00d5e151ebf6092d7d0628d21af5
Resolves: #55137
Releases: 2.3, master
Reviewed-on: http://review.typo3.org/31847
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>