[BUGFIX] Don't show translated categories in parent tree

The parent category tree should only show categories in default
language.

Resolves: #44915
Releases: 6.2, 6.1, 6.0
Change-Id: I7920cf7ae208ba2db3bd24f7da5439824064c167
Reviewed-on: https://review.typo3.org/22010
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind