diff --git a/src/vs/workbench/contrib/views/browser/treeView.ts b/src/vs/workbench/contrib/views/browser/treeView.ts
index ec25933b26cde74e4fa4ae0325e99036abc1a2c4..aabae327d7a3b28b4aa5de769f214fd090f28b70 100644
--- a/src/vs/workbench/contrib/views/browser/treeView.ts
+++ b/src/vs/workbench/contrib/views/browser/treeView.ts
@@ -693,7 +693,6 @@ class TreeRenderer extends Disposable implements ITreeRenderer<ITreeItem, FuzzyS
 	static readonly TREE_TEMPLATE_ID = 'treeExplorer';
 
 	private _actionRunner: MultipleSelectionActionRunner | undefined;
-	private readonly hoverDelay: number;
 
 	constructor(
 		private treeViewId: string,
@@ -707,7 +706,6 @@ class TreeRenderer extends Disposable implements ITreeRenderer<ITreeItem, FuzzyS
 		@IHoverService private readonly hoverService: IHoverService
 	) {
 		super();
-		this.hoverDelay = 500; // milliseconds
 	}
 
 	get templateId(): string {