[CLEANUP] #5197 Use comments instead of PHPDoc style comments in copyright block

Change-Id: If810623cb70564f98b729e4a4b23e7d0a59614ce
Reviewed-on: http://review.typo3.org/35263
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Tested-by: Oliver Klee <typo3-coding@oliverklee.de>