[TASK] Follow up: Remove obsolete reports icon

In Ie1dd7b6290012a6d4836319a193ccd102828388d, the reports icon was
replaced, but the old one was kept. This patch removes the icon.

Resolves: #63425
Related: #63253
Releases: master
Change-Id: If93ea3a7f445caa124b5cf1851e434d4875fbfe9
Reviewed-on: http://review.typo3.org/34769
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Frank Nägler <typo3@naegler.net>
Tested-by: Frank Nägler <typo3@naegler.net>