[BUGFIX] [FOLLOWUP] ext:beuser permission module throws query error

A removed class property was still in use and results
in a wrong SQL query.

Related: #64416
Resolves: #64416
Releases: master
Change-Id: I4b2d17fe307a9137487101eacf64610a13f8a2db
Reviewed-on: http://review.typo3.org/36181


Reviewed-by: Benjamin Mack <benni@typo3.org>
Tested-by: Benjamin Mack <benni@typo3.org>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>