That's exactly what it is - the script will record visits to your Cloud Page for reporting purposes when it comes round to finding out who's been access your pages, but there's no way to physcially remove it via the Cloud Page settings.
After some playing around I found that the Code Resources component of the Cloud Pages will allow you to render your page without this script on - the only problem here is that there is not HTML option for a code resource.
What I did was create a new Code Resource by choosing the JSON type and paste my HTML in. What you'll notice after publishing is that the HTML would only show as plain text.
The final part is to change the Content Type of the page for the browser to render the page as HTML. Simply add the following Server Side Javscript to the very top of your page.
You'll be able to continue using the Cloud Page without the tracking script that Marketing Cloud injects in to your HTML.