Drop global configuration option "content_doktypes"
[!!!][TASK] Remove "content_doktypes"
The global option "content_doktypes" is
1. outdated (still contains doktypes 2 which was removed in 4.x)
2. only in use for Workspace Preview Links and Frontend Editing to query page trees
However, the idea was to disallow content editing (QuickEdit) and skip
search of other doktypes for simple DB search (removed in TYPO3 v7)
This is not the case anymore and nowadays a hidden feature which is only
10% implemented, and just another tedious option bloating the system.
The option has been removed and also cleaned via SilentConfigurationUpgradeService.
Reviewed-by: Mathias Schreiber <email@example.com>
Tested-by: Mathias Schreiber <firstname.lastname@example.org>
Reviewed-by: Andreas Fernandez <email@example.com>
Tested-by: TYPO3com <firstname.lastname@example.org>
Reviewed-by: Georg Ringer <email@example.com>
Tested-by: Georg Ringer <firstname.lastname@example.org>