If you would like to remove or uninstall Mr. E tool then its a simple click away process. There are various ways to do that.
On your chrome browser you will see Mr. E icon. Right click on that and you will see a picture like below.
Click on Remove from Chrome. That will remove the Mr. E tool from your browser.
Go to Extensions from your chrome browser by clicking on 3 dots on top right corner.
Once you are on the page, find Mr. E tool and click on Remove. That will remove the Mr. E tool from your browser.
IMPORTANT - If you would like to reinstall the Mr. E tool again, then you can read this article.