[!!!][TASK] Do not clear caches after extension config change

This change removes the cache flush after extension configuration changes.
Furthermore we avoid duplicate cache flushing on extension installation.

Resolves: #59966
Releases: master
Change-Id: I6b214ac76fb7305c40f0ce7a33b895323979cbe6
Reviewed-on: http://review.typo3.org/31180
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Stefan Froemken <froemken@gmail.com>
Tested-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>