Disable the Wiki Preview icon.

I'm looking for a way to disable the Preview icon on the default wiki server. I'm running into an issue where some of the video we're uploading to share internally is very large format, and as a result when a user chooses to preview the video on the site, opposed to downloading it to view, the preview screen is larger than the typical display. I suspect the orginal video was shot and edited as 720p or higher, and thus the sizing issue.

Is there simply a way to disable the Preview icon, the eyball, so users are required to download the files opposed to just looking at the quicklook-like preview?

--Michael