[BUGFIX] Unused argument in getItemUidList()

t3lib_collection_AbstractRecordCollection::getItemUidList() has
a method argument that is not used. The purpose is to have a
combination of table name and uid on demand.

Change-Id: I53f6aa0f87ea87db20d0e2d95cf5b4f5e2bdea81
Fixes: #35277
Releases: 6.0, 4.7
Reviewed-on: http://review.typo3.org/9899
Reviewed-by: Dmitry Dulepov
Reviewed-by: Steffen Ritter
Tested-by: Steffen Ritter