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