I did ask Auctiva how to remove it and they answered within a few minutes. Here is the response
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In order to remove the Auctiva scrolling gallery from your active eBay listings, you will need to revise each via the following process:
1) Click the "Revise your Item" link on the item.
2) Scroll down about 1/3 the page to the “Description” section.
3) Click the "HTML" tab on the description editor.
4) Hold "CTRL" and press "F" to initiate an IE or Firefox "Find" command.
5) Enter <!--ASW--> in the “Find” field and click “Find Next”. The text <!--ASW--> will become highlighted, which is the beginning of the scrolling gallery HTML.
6) Click “Find Next” again and a second instance of <!--ASW--> will become highlighted, which is the end of the scrolling gallery HTML.
7) Delete all of the code between and including those tags and save your changes.
If you have any additional questions or concerns pertaining to your Auctiva account, please feel free to let me know, and I’ll be happy to continue assisting you.
Sincerely,
Auctiva Support
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I now need to ask, If I leave my existing listings as they are How do I keep the window out of all new listings? "Geeez!"