Don't know about disable but hide it by adding this to your header:
<style type="text/css">
#slider {display: none}
.ui-slider {width: 94% !important; margin: 0 3% 0 3% !important}
</style>
Just tweak the margins and width as you like...
Note: will make the slider pretty big on big screens so you should probably add something like:
.min-width-480px div.ui-slider {width: 300px !important}