diff --git a/lib/client-assets.php b/lib/client-assets.php
index 9b5db194d202e2..092b3d88c0edbc 100644
--- a/lib/client-assets.php
+++ b/lib/client-assets.php
@@ -432,19 +432,6 @@ function gutenberg_register_packages_styles( &$styles ) {
  * @since 0.1.0
  */
 function gutenberg_enqueue_block_editor_assets() {
-	wp_add_inline_script(
-		'wp-api-fetch',
-		sprintf(
-			'wp.apiFetch.nonceMiddleware = wp.apiFetch.createNonceMiddleware( "%s" );' .
-			'wp.apiFetch.use( wp.apiFetch.nonceMiddleware );' .
-			'wp.apiFetch.nonceEndpoint = "%s";' .
-			'wp.apiFetch.use( wp.apiFetch.mediaUploadMiddleware );',
-			( wp_installing() && ! is_multisite() ) ? '' : wp_create_nonce( 'wp_rest' ),
-			admin_url( 'admin-ajax.php?action=gutenberg_rest_nonce' )
-		),
-		'after'
-	);
-
 	if ( defined( 'GUTENBERG_LIVE_RELOAD' ) && GUTENBERG_LIVE_RELOAD ) {
 		$live_reload_url = ( GUTENBERG_LIVE_RELOAD === true ) ? 'http://localhost:35729/livereload.js' : GUTENBERG_LIVE_RELOAD;