Various methods within ExtensionManagementUtility that was
previously deprecated have been removed.

Resolves: #87311
Releases: master
Change-Id: I38e557f46492cc2b3c14f97882266efa673d7349
Reviewed-on: https://review.typo3.org/59311


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>