WAVE is a browser extension used to test the accessibility of a web page. It alters the HTML to add indicators thoughout the page, but unfortunately there isn't a way to remove this indicators. That's where this bookmarklet comes in. When you're done with the evaluation, click on this bookmarklet, and all the indicators will disappear.
Important note: This is not a perfect solution. This bookmarklet is only removing the indicators, but not actually reseting WAVE. So if you need to run WAVE again, you will likely need to Run it twice to open the WAVE side panel and apply the indicators again.
Download the wave-reset.html
file included in this Gist