Revert "[BUGFIX] sys_file record doesn't get flagged as delete"

This reverts commit 18bb6574966d6fdff944e8fd5f95e9225dae4365

Change-Id: I2cd6c4a03c3336e73bfe81fa86f222ce5a352f7d
Reviewed-on: https://review.typo3.org/22665
Reviewed-by: Oliver Hader
Tested-by: Oliver Hader