[Task] Change whitespaces in indentions into tabs

This is a follow up to #36871.
Some whitespace indentions came back into core.
This patch removes them.

Change-Id: Iabc8eb2fed79ae6de8e8e9e12fcdb7a5bcb65a40
Related: #36871
Resolves: #37020
Releases: 6.0
Reviewed-on: http://review.typo3.org/11120
Reviewed-by: Philipp Gampe
Tested-by: Philipp Gampe
Reviewed-by: Wouter Wolters
Tested-by: Wouter Wolters
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn