Merge most admin css files, first run, see #18314

git-svn-id: http://svn.automattic.com/wordpress/trunk@18577 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/network/index.php

@@ -36,8 +36,6 @@ wp_dashboard_setup();
 
 wp_enqueue_script( 'dashboard' );
 wp_enqueue_script( 'plugin-install' );
-wp_admin_css( 'dashboard' );
-wp_admin_css( 'plugin-install' );
 add_thickbox();
 
 add_screen_option('layout_columns', array('max' => 4, 'default' => 2) );