[BUGFIX] Remove not working "Lock Install Tool" button

Resolves: #82359
Releases: master
Change-Id: Id439a0b04e6af11214d0df7b30cb20e7c94dd99c
Reviewed-on: https://review.typo3.org/53971


Tested-by: Riccardo De Contardi <erredeco@gmail.com>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Hölzle <typo3@markus-hoelzle.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>