[TASK] Remove obsolete code

Change-Id: I432791fed7653e7936ca2f75d9cc5c78790ea996
Reviewed-on: https://review.typo3.org/26960
Reviewed-by: Fabien Udriot
Tested-by: Fabien Udriot
[FEATURE] Improve migration script towards 2.0

Change-Id: Ia0c8fbfd505e59f5df2b5d242281e00525f5cb81
Reviewed-on: https://review.typo3.org/26961
Reviewed-by: Fabien Udriot
Tested-by: Fabien Udriot