Remove sourcemaps URL

These will not work since we patch VS Code.

Index: code-server/lib/vscode/build/gulpfile.reh.ts
===================================================================
--- code-server.orig/lib/vscode/build/gulpfile.reh.ts
+++ code-server/lib/vscode/build/gulpfile.reh.ts
@@ -261,10 +261,15 @@ function packageTask(type: string, platf
 	const destination = path.join(BUILD_ROOT, destinationFolderName);
 
 	return () => {
+		const jsFilterMain = util.filter(data => !data.isDirectory() && /\.js$/.test(data.path));
+
 		const src = gulp.src(sourceFolderName + '/**', { base: '.' })
 			.pipe(rename(function (path) { path.dirname = path.dirname!.replace(new RegExp('^' + sourceFolderName), 'out'); }))
 			.pipe(util.setExecutableBit(['**/*.sh']))
-			.pipe(filter(['**', '!**/*.{js,css}.map']));
+			.pipe(filter(['**', '!**/*.{js,css}.map']))
+			.pipe(jsFilterMain)
+			.pipe(util.stripSourceMappingURL())
+			.pipe(jsFilterMain.restore);
 
 		const workspaceExtensionPoints = ['debuggers', 'jsonValidation'];
 		const isUIExtension = (manifest: { extensionKind?: string; main?: string; contributes?: Record<string, unknown> }) => {