[TASK] Remove unused toolbar related JS selectors

Resolves: #101238
Releases: main, 12.4
Change-Id: I3ff0ea07c5b4121d3b585215b13b4834de7838b4
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/79735


Reviewed-by: Oliver Bartsch <bo@cedev.de>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Oliver Bartsch <bo@cedev.de>