[!!!][TASK] Remove cache_phpcode cache configuration

The "cache_phpcode" cache was used for having TYPO3's own-baked
DBAL layer running. As this is not installed nor shipped anymore, the cache
configuration should be removed.

Resolves: #83243
Releases: master
Change-Id: Ic1c48b4090d3744239bdeb51ce1d178baf10aa40
Reviewed-on: https://review.typo3.org/54949


Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Markus Klein <markus.klein@typo3.org>
Tested-by: Markus Klein <markus.klein@typo3.org>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>