<?php

/* Place this into your mu-plugins folder and run a site upgrade through WPMU Admin->Upgrade */

function remove_unfiltered_html_cap() {
	$role = get_role('administrator');
	if( isset( $role->capabilities[ 'unfiltered_html' ] ) )
		$role->remove_cap('unfiltered_html');
	if( isset( $role->capabilities[ 'unfiltered_upload' ] ) )
		$role->remove_cap('unfiltered_upload');

	$role = get_role('editor');
	if( isset( $role->capabilities[ 'unfiltered_html' ] ) )
		$role->remove_cap('unfiltered_html');
	if( isset( $role->capabilities[ 'unfiltered_upload' ] ) )
		$role->remove_cap('unfiltered_upload');
}
add_action( 'init', 'remove_unfiltered_html_cap' );

?>