[BUGFIX] Remove superflous check in getModuleUrl

There is a check in getModuleUrl that checks
access rights to modules and returns false
if this is not the case.

However access rights are checked in each
module independently anyway.

So we remove this check here.

Resolves: #56611
Releases: 6.2
Change-Id: I63901cba3e882aab23de17929a461f08bd899cf1
Reviewed-on: https://review.typo3.org/28118
Reviewed-by: Markus Klein
Tested-by: Markus Klein
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters