ConfigItem Overviews: Code cleaning

[stefanhaerter]

As the ActionItem mechanism is not in use at all in the customer interface, the following code can most likely entirely be removed:

ITSMConfigurationManagement/Kernel/Output/HTML/ITSMConfigItem/CustomerOverviewSmall.pm

Lines 1408 to 1427 in 24eb867

	# add action items as js
	if ( $ConfigItem{ActionItems} ) {
	# replace TT directives from string with values
	for my $ActionItem ( @{ $ConfigItem{ActionItems} } ) {
	$ActionItem->{Link} = $LayoutObject->Output(
	Template => $ActionItem->{Link},
	Data => {
	ConfigItemID => $ConfigItem{ConfigItemID},
	},
	);
	}
	# $ActionRowConfigItems{ $ConfigItem{ConfigItemID} } = $LayoutObject->JSONEncode( Data => $ConfigItem{ActionItems} );
	$LayoutObject->AddJSData(
	Key => 'ITSMConfigItemActionRow.' . $ConfigItem{ConfigItemID},
	Value => $ConfigItem{ActionItems},
	);
	}
	}

Also, the mechanism is not used in the agent interface. Responsible is the following place:

ITSMConfigurationManagement/Kernel/Output/HTML/ITSMConfigItem/OverviewSmall.pm

Lines 570 to 578 in 24eb867

	# run module
	my $Item = $Object->Run(
	%Param,
	ConfigItem => \%ConfigItem,
	ACL => \%AclAction,
	Config => $Menus{$Menu},
	);
	next MENU if !$Item;
	next MENU if ref $Item ne 'HASH';

There are pre-menu modules in the sysconfig and enabled, but the Run methods all return 1, which is not a hash. It should be reviewed if the mechanism as such is needed and if so, we should check how to enable it.