diff --git a/wp-admin/includes/ms.php b/wp-admin/includes/ms.php
index e85e2de68c..6fe034ee1c 100644
--- a/wp-admin/includes/ms.php
+++ b/wp-admin/includes/ms.php
@@ -805,16 +805,6 @@ function choose_primary_blog() {
 	<?php
 }
 
-function show_post_thumbnail_warning() {
-	if ( ! is_super_admin() )
-		return;
-	$mu_media_buttons = get_site_option( 'mu_media_buttons', array() );
-	if ( empty($mu_media_buttons['image']) && current_theme_supports( 'post-thumbnails' ) ) {
-		echo "<div class='update-nag'>" . sprintf( __( "Warning! The current theme supports Featured Images. You must enable image uploads on <a href='%s'>the options page</a> for it to work." ), esc_url( admin_url( 'ms-options.php' ) ) ) . "</div>";
-	}
-}
-add_action( 'admin_notices', 'show_post_thumbnail_warning' );
-
 function ms_deprecated_blogs_file() {
 	if ( ! is_super_admin() )
 		return;