diff --git a/src/vs/code/electron-main/window.ts b/src/vs/code/electron-main/window.ts
index 1d5a69263a7117b7765f9c1148e96f4ebaa95e0b..67f136fc7329be2bbf6629d4b8b0307f2cc96779 100644
--- a/src/vs/code/electron-main/window.ts
+++ b/src/vs/code/electron-main/window.ts
@@ -314,9 +314,6 @@ export class CodeWindow extends Disposable implements ICodeWindow {
 		this._win.webContents.session.webRequest.onBeforeSendHeaders({ urls }, (details: any, cb: any) => {
 			this.marketplaceHeadersPromise.then(headers => {
 				const requestHeaders = objects.assign(details.requestHeaders, headers);
-				if (!this.configurationService.getValue('extensions.disableExperimentalAzureSearch')) {
-					requestHeaders['Cookie'] = `${requestHeaders['Cookie'] ? requestHeaders['Cookie'] + ';' : ''}EnableExternalSearchForVSCode=true`;
-				}
 				cb({ cancel: false, requestHeaders });
 			});
 		});