snapping: remove unreachable lane child traversal

Author: rohanSSBJ

lib/features/snapping/BpmnCreateMoveSnapping.js

@@ -13,7 +13,7 @@ import { isExpanded } from '../../util/DiUtil';
 
 import { is } from '../../util/ModelUtil';
 
-import { collectLanes } from '../modeling/util/LaneUtil';
+
 
 import {
   asTRBL,
@@ -210,31 +210,12 @@ BpmnCreateMoveSnapping.prototype.addSnapTargetPoints = function(snapPoints, shap
  * @return {Shape[]}
  */
 BpmnCreateMoveSnapping.prototype.getSnapTargets = function(shape, target) {
-  var snapTargets = CreateMoveSnapping.prototype.getSnapTargets.call(this, shape, target)
+  return CreateMoveSnapping.prototype.getSnapTargets.call(this, shape, target)
     .filter(function(snapTarget) {
 
       // do not snap to lanes
       return !is(snapTarget, 'bpmn:Lane');
     });
-
-  // In participants with lanes, flow nodes are children of the participant,
-  // but lanes are also children. The base implementation returns all children,
-  // and we've filtered out lanes above. However, we should also include
-  // children from nested lanes (for sublanes) if any exist.
-  if (is(target, 'bpmn:Participant')) {
-    var lanes = collectLanes(target, []);
-
-    // Add children from lanes (handles nested sublanes if any)
-    forEach(lanes, function(lane) {
-      forEach(lane.children || [], function(child) {
-        if (!is(child, 'bpmn:Lane') && !child.hidden && child !== shape && snapTargets.indexOf(child) === -1) {
-          snapTargets.push(child);
-        }
-      });
-    });
-  }
-
-  return snapTargets;
 };
 
 // helpers //////////