As a prepatory work for a better static code analysis
all ampersands have been removed from doc block params.

The doc block must not reflect whether a variable is
passed by value or reference.

Releases: master
Resolves: #89912
Change-Id: Ibead2ec2db6487e32bcd5fc271a6566bab46d255
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62594


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Mathias Brodala <mbrodala@pagemachine.de>
Reviewed-by: Björn Jacob <bjoern.jacob@tritum.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Mathias Brodala <mbrodala@pagemachine.de>
Tested-by: Björn Jacob <bjoern.jacob@tritum.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>