[BUGFIX] Do not use the removed <i:constant> viewhelper anymore

In the environment module, the removed <i:constant> viewhelper
is still referenced, which can easily be used by assigning
the proper variable to Fluid.

This change was merged last week due to the TYPO3_version
logic.

Resolves: #90077
Related: #90007
Releases: master
Change-Id: Ie3ccd03b757303e253a71bea26c60406552e3d5e
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/62838


Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Reviewed-by: Andreas Fernandez <a.fernandez@scripting-base.de>
Tested-by: TYPO3com <noreply@typo3.com>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Andreas Fernandez <a.fernandez@scripting-base.de>