Cannot Disable HTML Filer in WYSIWYG for Super Admin

Every time I write code into the WP html editor for a post or a page, wordpress likes to add <p> and
to the code that I write. It does not appear in the editor only in the live source code. I am the Super Admin working on the Main site for the Multi Site network.

I have
commented out the filter in wp-includes/kses.php
//add_filter('content_save_pre', 'wp_filter_post_kses');
//add_filter('content_filtered_save_pre', 'wp_filter_post_kses');

installed Unfiltered MU

None of this helped.