[BUGFIX] Remove superfluous extbase TS option

When removing the extbase query cache in 8.3, the TypoScript option
was not removed which has no effect anymore since then.

Resolves: #77460
Releases: master, 8.7
Change-Id: I72d3907fd1c3aa302a03cc1f41bfe28b97020216
Reviewed-on: https://review.typo3.org/53235


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Mona Muzaffar <mona.muzaffar@gmx.de>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Tested-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Reviewed-by: Frank Naegler <frank.naegler@typo3.org>
Tested-by: Frank Naegler <frank.naegler@typo3.org>

typo3/sysext/core/Documentation/Changelog/8.3/Breaking-77460-ExtbaseQueryCacheRemoved.rst

@@ -18,6 +18,7 @@ The following public methods within the Extbase persistence layer have been remo
  * `Typo3DbBackend->injectCacheManager()`
  * Interface definition in `QuerySettingsInterface->getUseQueryCache()`
 
+The TypoScript configuration `config.tx_extbase.persistence.useQueryCache` has no effect anymore.
 
 Impact
 ======

typo3/sysext/extbase/ext_typoscript_setup.txt

@@ -10,7 +10,6 @@ config.tx_extbase {
 	persistence{
 		enableAutomaticCacheClearing = 1
 		updateReferenceIndex = 0
-		useQueryCache = 1
 		classes {
 			TYPO3\CMS\Extbase\Domain\Model\FileMount {
 				mapping {