[TASK] Replace calls to ExtensionManagementUtility with PackageManager

The ExtensionManagementUtility is used by the Extensionsmanagers
InstallUtility and just forwards all calls the InstallUtility does to the
PackageManager.

The superfluous calls to the ExtensionManagementUtility are replaced
by calls to the PackageManager.

Resolves: #53013
Releases: 6.2
Change-Id: I0dbcbafa89d3a3c7cb6f6c65bdb16320cb737108
Reviewed-on: https://review.typo3.org/24941
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters