Revert "[BUGFIX] FE session records are never removed"

This reverts commit da58b20c22a0a69df4d14599c59a850a09b19dc5.

Change-Id: I2a0e2ab45c3b94d6c036187aa296a0983313a42a
Resolves: #45570
Reviewed-on: https://review.typo3.org/18464
Reviewed-by: Xavier Perseguers
Reviewed-by: Oliver Hader
Tested-by: Oliver Hader
Merge remote-tracking branch 'upstream/TYPO3_4-5' into TYPO3_4-5