[TASK] Cleanup legacy IMv4 options

The GraphicalFunctions options $V5_EFFECTS and $_NO_IM_EFFECTS
are no the exact opposite all times, due to the removal of IM4 support.

For this reason, the property $V5_EFFECTS can be removed.

Resolves: #80448
Releases: master
Change-Id: I935a5d89a98ebc16b04be46e492d26346fa10f82
Reviewed-on: https://review.typo3.org/52159


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