[CLEANUP] Remove unused view helpers

Resolves: #58374
Release: 6.2
Change-Id: I1e9198ced13ac132040dcc9b1a249b1f2c553b9b
Reviewed-on: https://review.typo3.org/29755
Reviewed-by: Nico de Haen
Tested-by: Nico de Haen