Blank White Space at Bottom of Articles

I have a blank white space at the bottom of my articles.

For some unknown reason Google AdSense disabled my account. I believe the blank white space is where the AdSense code used to be.

Someone added the AdSense code for me. I’m a newbie and can’t figure out how to remove that and get rid of the blank white space. I’ve searched the Templates but cant seem to find it.

Any help would be appreciated.