[FEATURE] Remove size bound of included TypoScript files

Change-Id: Ib8dd5576d4400cb4da38c86384ce6dd31f734508
Resolves: #25709
Reviewed-on: http://review.typo3.org/1408
Reviewed-by: Steffen Gebert
Tested-by: Steffen Gebert
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn