Deprecation: #86178 - Class ElementBrowserFramesetController
See forge#86178
Description
Class \TYPO3\ and the route
target of browser have been marked as deprecated and should not be used any longer.
Impact
If calling that controller class a PHP E_ error is triggered.
Affected Installations
The route target is unused in core for a while already. Extensions are only affected
if they call the Backend route target browser that renders the element browser
in a frameset.
Migration
Use the modal based element browser with the route wizard_ instead.