Breaking: #72889 - Removed RteHtmlParser htmlspecialchars() transformation options

See Issue #72889

Description

The TSconfig options RTE.default.proc.dontHSC_rte and RTE.default.proc.dontUndoHSC_db have been removed from the TYPO3 Core.

Impact

Setting these options has no effect anymore.

Affected Installations

Any installation using these options for properly applying htmlspecialchars() to the RTE content when cleaning the HTML input from an RTE and vice versa.

Migration

Use entryHtmlParser and exitHtmlParser to apply htmlspecialchars while transforming content from the RTE or to the RTE.