[TASK] Deprecate GeneralUtility::freetypeDpiComp

The Freetype related method "GeneralUtility::freetypeDpiComp"
has been marked as deprecated and moved to GraphicalFunctions
where it belongs to.

Resolves: #80449
Releases: master
Change-Id: Iaa549051c38993a24415c2bfdb785715c1d6e74d
Reviewed-on: https://review.typo3.org/52160


Reviewed-by: Frank Nägler <frank.naegler@typo3.org>
Tested-by: Frank Nägler <frank.naegler@typo3.org>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>