diff --git a/src/vs/workbench/parts/markers/browser/MarkersTreeController.ts b/src/vs/workbench/parts/markers/browser/MarkersTreeController.ts
index c181fd3cff5ef51c3ac258f8f3941696d4ef00e2..e653f74b18227afc59580b5ce18ec00030cb7d68 100644
--- a/src/vs/workbench/parts/markers/browser/MarkersTreeController.ts
+++ b/src/vs/workbench/parts/markers/browser/MarkersTreeController.ts
@@ -12,14 +12,11 @@ import treedefaults = require('vs/base/parts/tree/browser/treeDefaults');
 import { CommonKeybindings } from 'vs/base/common/keyCodes';
 import { Marker } from 'vs/workbench/parts/markers/common/MarkersModel';
 import { IWorkbenchEditorService } from 'vs/workbench/services/editor/common/editorService';
-import {ICodeEditorService} from 'vs/editor/common/services/codeEditorService';
-import {ICommonCodeEditor} from 'vs/editor/common/editorCommon';
 import { IMarker } from 'vs/platform/markers/common/markers';
 
 export class Controller extends treedefaults.DefaultController {
 
-	constructor(@IWorkbenchEditorService private editorService: IWorkbenchEditorService,
-				@ICodeEditorService private codeEditorService: ICodeEditorService) {
+	constructor(@IWorkbenchEditorService private editorService: IWorkbenchEditorService) {
 		super({ clickBehavior: treedefaults.ClickBehavior.ON_MOUSE_UP });
 		this.downKeyBindingDispatcher.set(CommonKeybindings.SHIFT_UP_ARROW, this.onUp.bind(this));
 		this.downKeyBindingDispatcher.set(CommonKeybindings.SHIFT_DOWN_ARROW, this.onDown.bind(this));
@@ -58,29 +55,4 @@ export class Controller extends treedefaults.DefaultController {
 		}
 		return false;
 	}
-
-	public _preview(element: any): void {
-		if (element instanceof Marker) {
-			let marker = <IMarker>element.marker;
-			const editors = this.codeEditorService.listCodeEditors();
-			let editor: ICommonCodeEditor;
-			for (let candidate of editors) {
-				if (!candidate.getModel()
-					|| candidate.getModel().getAssociatedResource().toString() !== marker.resource.toString()) {
-
-					continue;
-				}
-
-				if (!editor || this.editorService.getActiveEditor()
-					&& candidate === this.editorService.getActiveEditor().getControl()) {
-
-					editor = candidate;
-				}
-			}
-
-			if (editor) {
-				editor.revealRangeInCenter(marker);
-			}
-		}
-	}
 }