wptexturize keeps texturizing my shortcode

I have a script outside of WordPress that generates an HTML file a few hundred times a day. I figured the best way to get the contents of this file in to a specific page would be a shortcode. I wrote one that looks something like this:

function get_special_content($atts) {
    remove_filter('the_content', 'wpautop');
    remove_filter('the_content', 'wptexturize');
    return file_get_contents('/somewhere/somefile.html');
}
add_shortcode('SPECIAL_SHORTCODE', 'get_special_content');

It works great, however the problem is that wptexturize is trashing the HTML. I have a few lines that look like this:

<tr data-notes="Blah - Blah">...</tr>

However the output that gets sent to the browser looks like this:

<tr data-notes="Blah – Blah>...</tr>

Notice that the closing " is removed!

I thought calling the remove_filter() inside the shortcode function would remove it but apparently not. I’ve also tried setting priorities to 1, 9, 10, 11, and 99. I’ve also tried this and and nothing works.