[TYPO3-core] Revert "[BUGFIX] Invalid rendering of high resolution icons in lists"

[Oliver Hader]

Hi everybody,

some minutes before the planned releases, we have been informed about a
potential regression introduced with issue #61656. See more details
about the side-effects in issue #61813

Regression: https://forge.typo3.org/issues/61656
Description: https://forge.typo3.org/issues/61813

Unfortunately there was no way to easily solve the regression. That's
why I reverted the change for both branches, master and TYPO3_6-2.

https://review.typo3.org/#/c/32931/
https://review.typo3.org/#/c/32932/

All the best
Olly
-- 
Oliver Hader
TYPO3 CMS Core Team Leader

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