Breaking: #102931 - Removed hook in GifBuilder

See forge#102931

Description

The hook $GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['tslib/class.tslib_gifbuilder.php']['gifbuilder-ConfPreProcess'] has been removed.

This hook was solely introduced in TYPO3 v3.8.0 for a specific use case which isn't needed anymore, and thus removed.

At the same time the whole GifBuilder class is now strictly typed.

Impact

PHP code utilizing this hook will not be executed anymore.

Affected installations

TYPO3 installations with extensions utilizing this hook, which is highly unlikely.

Any usages can be found with the Extension Scanner in the Install Tool.

Migration

It is recommended to hand in custom configuration already into GifBuilder directly, and remove any usages to the hook in custom extension code.