diff --git a/lib/browser/rpc-server.js b/lib/browser/rpc-server.js
index acf13a4c191b..689b1e71b012 100644
--- a/lib/browser/rpc-server.js
+++ b/lib/browser/rpc-server.js
@@ -96,17 +96,11 @@ const getPreloadScript = async function (preloadPath) {
   return { preloadPath, preloadSrc, preloadError };
 };
 
-ipcMainUtils.handleSync('ELECTRON_GET_CONTENT_SCRIPTS', () => []);
-
 ipcMainUtils.handleSync('ELECTRON_BROWSER_SANDBOX_LOAD', async function (event) {
   const preloadPaths = event.sender._getPreloadPaths();
-
-  const contentScripts = [];
-
   const webPreferences = event.sender.getLastWebPreferences() || {};
 
   return {
-    contentScripts,
     preloadScripts: await Promise.all(preloadPaths.map(path => getPreloadScript(path))),
     isRemoteModuleEnabled: isRemoteModuleEnabled(event.sender),
     isWebViewTagEnabled: guestViewManager.isWebViewTagEnabled(event.sender),
diff --git a/lib/sandboxed_renderer/init.js b/lib/sandboxed_renderer/init.js
index 9dd7a98a1b0d..7de17d8435ea 100644
--- a/lib/sandboxed_renderer/init.js
+++ b/lib/sandboxed_renderer/init.js
@@ -30,7 +30,6 @@ const { ipcRendererInternal } = require('@electron/internal/renderer/ipc-rendere
 const ipcRendererUtils = require('@electron/internal/renderer/ipc-renderer-internal-utils');
 
 const {
-  contentScripts,
   preloadScripts,
   isRemoteModuleEnabled,
   isWebViewTagEnabled,