Removed collapse / expand all

I don't think it ever worked.

resources/qml/Settings/SettingView.qml

@@ -558,17 +558,6 @@ Item
 
                     onTriggered: Cura.Actions.configureSettingVisibility.trigger(contextMenu);
                 }
-                MenuSeparator {}
-                MenuItem
-                {
-                    text: catalog.i18nc("@action:inmenu", "Collapse All")
-                    onTriggered: definitionsModel.collapseAll()
-                }
-                MenuItem
-                {
-                    text: catalog.i18nc("@action:inmenu", "Expand All")
-                    onTriggered: definitionsModel.expandRecursive()
-                }
             }
 
             UM.SettingPropertyProvider