diff --git a/api/js/egw_action/egw_dragdrop_dhtmlx_tree.ts b/api/js/egw_action/egw_dragdrop_dhtmlx_tree.ts
deleted file mode 100755
index b4a1d5ed5d..0000000000
--- a/api/js/egw_action/egw_dragdrop_dhtmlx_tree.ts
+++ /dev/null
@@ -1,82 +0,0 @@
-/**
- * EGroupware egw_dragdrop_dhtmlxmenu - egw action framework
- *
- * @link https://www.egroupware.org
- * @author Andreas Stöckel <as@stylite.de>
- * @copyright 2011 by Andreas Stöckel
- * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
- * @package egw_action
- */
-
-
-import {egwBitIsSet} from "./egw_action_common";
-import {EGW_AI_DRAG_OUT, EGW_AI_DRAG_OVER, EGW_AO_STATE_FOCUSED, EGW_AO_STATE_SELECTED} from "./egw_action_constants";
-import {egwActionObjectInterface} from "./egw_action";
-
-/**
- * This file contains an egw_actionObjectInterface which allows a dhtmlx tree
- * row to be a drag target and contains a function which transforms a complete
- * dhtmlx tree into egw_actionObjects
- */
-declare class dhtmlXTreeObject
-{
-
-	_globalIdStorageFind(_itemId: string): any
-}
-
-export function dhtmlxTree_getNode(_tree: dhtmlXTreeObject, _itemId: string)
-{
-	const node = _tree._globalIdStorageFind(_itemId);
-	if (node != null)
-	{
-		// Get the outer html table node of the tree node - return the first
-		// "tr" child of the element
-		return node.htmlNode.querySelector("tr:first-child")
-	}
-}
-
-// An action object interface for an dhtmlxTree entry - it only contains the
-// code needed for drag/drop handling
-export class dhtmlxtreeItemAOI
-{
-	constructor(_tree, _itemId)
-	{
-
-		const aoi = new egwActionObjectInterface();
-
-		// Retrieve the actual node from the tree
-		aoi.node = dhtmlxTree_getNode(_tree, _itemId);
-		aoi.id = _itemId;
-		aoi.doGetDOMNode = function () {
-			return aoi.node;
-		}
-
-		aoi.doTriggerEvent = function (_event) {
-			if (_event == EGW_AI_DRAG_OVER)
-			{
-				jQuery(this.node).addClass("draggedOver");
-			}
-			if (_event == EGW_AI_DRAG_OUT)
-			{
-				jQuery(this.node).removeClass("draggedOver");
-			}
-		}
-
-		aoi.doSetState = function (_state) {
-			if (!_tree || !_tree.focusItem) return;
-
-			// Update the "focused" flag
-			if (egwBitIsSet(_state, EGW_AO_STATE_FOCUSED))
-			{
-				_tree.focusItem(this.id);
-			}
-			if (egwBitIsSet(_state, EGW_AO_STATE_SELECTED))
-			{
-				_tree.selectItem(this.id, false);	// false = do not trigger onSelect
-			}
-		}
-
-		return aoi;
-	}
-}
-