Breaking: #66369 - Removed ElementBrowser related classes 

See forge#66369

Description 

The following classes have been removed without replacement

  • TYPO3CMSCoreElementBrowserElementBrowserHookInterface
  • TYPO3CMSRecordlistBrowserElementBrowser
  • TYPO3CMSRtehtmlareaBrowseLinks
  • TYPO3CMSRtehtmlareaFolderTree
  • TYPO3CMSRtehtmlareaPageTree

Impact 

Any code still using the aforementioned classes will cause a fatal error.

Affected Installations 

Any code still using the aforementioned classes.

Migration 

Use the new API for adding element browsers or link handlers.