Deprecation: #89468 - Deprecate injection of EnvironmentService in Web Request 

See forge#89468

Description 

The EnvironmentService is not needed any longer in the Web Request of Extbase, therefore the property and the injection method of said property have been marked as deprecated.

Impact 

As of TYPO3 11.0, the property \TYPO3\CMS\Extbase\Mvc\Web\Response::$environmentService will no longer exist. If the environment service is needed in a subclass of \TYPO3\CMS\Extbase\Mvc\Web\Response, it needs to be injected manually.

Affected Installations 

All installations that implement subclasses of \TYPO3\CMS\Extbase\Mvc\Web\Response and expect an instance of the EnvironmentService to be injected into \TYPO3\CMS\Extbase\Mvc\Web\Response::$environmentService.

Migration 

The environment service needs to be injected manually in the subclass.