[!!!][TASK] Remove handling core caches with 'cache_' prefix

The core related caches have been renamed from
'cache_foo' to 'foo' in v10 already, together with
a deprecation fallback. This fallback was planned
for removal in v11 already, but has been prolonged
to v12 to ease extension usage that want to stay
compatible with two core versions.

That fallback is now removed and a note is added
to the main 'deprecation removal' ReST file.

Resolves: #96836
Related: #96107
Related: #88366
Related: #94412
Releases: main
Change-Id: I0560a7bc924d0a3a0224a3b013ccd09d712ecdef
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/73430


Tested-by: core-ci <typo3@b13.com>
Tested-by: Nikita Hovratov <nikita.h@live.de>
Tested-by: Benni Mack <benni@typo3.org>
Reviewed-by: Nikita Hovratov <nikita.h@live.de>
Reviewed-by: Benni Mack <benni@typo3.org>