[TASK] Deprecate legacy Element Browser logic

The hook
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['typo3/browse_links.php']['browserRendering']
is deprecated in favor of the ElementBrowser API
implemented in TYPO3 v7.6 via https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/7.6/Feature-66369-AddedLinkBrowserAPIs.html

Also, calling "wizard_element_browser" with mode=wizard
or "mode=rte" is deprecated, instead extensions should link to
"wizard_link", which also exists since TYPO3 v8.

Resolves: #95322
Releases: master
Change-Id: I4ad30fa0b0c0684767e1060d99cebc11b7db9710
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/71180


Tested-by: core-ci <typo3@b13.com>
Tested-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Oliver Bartsch <bo@cedev.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Oliver Bartsch <bo@cedev.de>
Reviewed-by: Benni Mack <benni@typo3.org>