Delete update_plugins when plugins are deleted. Props thinlight. fixes #8451

git-svn-id: http://svn.automattic.com/wordpress/trunk@10038 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/plugin.php

@@ -426,9 +426,12 @@ function delete_plugins($plugins, $redirect = '' ) {
 			$errors[] = $plugin_file;
 	}
 
-	if( ! empty($errors) )
+	if ( ! empty($errors) )
 		return new WP_Error('could_not_remove_plugin', sprintf(__('Could not fully remove the plugin(s) %s'), implode(', ', $errors)) );
 
+	// Force refresh of plugin update information
+	delete_option('update_plugins');
+
 	return true;
 }