Convert all SQL statements in backend utility class
to the new Doctrine DBAL based API.

Change-Id: I8febf022d8a5c40756baf051496521885bed1ab1
Releases: master
Resolves: #75650
Reviewed-on: https://review.typo3.org/48040

Reviewed-by: Manuel Selbach <manuel_selbach@yahoo.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Bamboo TYPO3com <info@typo3.com>
Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>