From b9b685e83cb00192e9f9f6dd48fa48ae2eeb6c20 Mon Sep 17 00:00:00 2001
From: Jiachi Liu <inbox@huozhi.im>
Date: Fri, 18 Mar 2022 00:56:35 +0100
Subject: [PATCH] remove unused

---
 packages/next/pages/_document.tsx | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/packages/next/pages/_document.tsx b/packages/next/pages/_document.tsx
index cc48bbec9a91..adc58bf357df 100644
--- a/packages/next/pages/_document.tsx
+++ b/packages/next/pages/_document.tsx
@@ -585,11 +585,8 @@ export class Head extends Component<
       disableOptimizedLoading,
       optimizeCss,
       optimizeFonts,
-      runtime,
     } = this.context
 
-    const hasConcurrentFeatures = !!runtime
-
     const disableRuntimeJS = unstable_runtimeJS === false
     const disableJsPreload =
       unstable_JsPreload === false || !disableOptimizedLoading