[TASK] Remove deprecated showSysNotesForPage in AbstractDatabaseRecordList

Resolves: #56843
Releases: 6.2
Change-Id: I9a342144f343196a9f8c199dfc311668707c1e66
Reviewed-on: https://review.typo3.org/28321
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Georg Ringer
Tested-by: Georg Ringer