Can't remove Unwanted header

Before installing Adventurous Pro, I had a link in my side-bar to 'Bible Gateway'. Now it appears at the top of the home page, full width. I searched for the code and can't find it in any of the html files. Where is it? The first line of the code is: <form action="https://www.biblegateway.com/quicksearch/"> Thanks Loyal http://www.isaiah118.org