Userscripts.org

I'll try to add it in the next release. If you don't want to wait, look for the part near the top of the script that says:

if (self != top) { return; }

Immediately after it you can put the following code to hide the pictures to the left of the feed items. It's not perfect but it basically does what you asked.

GM_addStyle('.UIIntentionalStory_Pic { display:none; }');

You could also add the following code in the same place to hide the pics in comments about the feed items (and probably on walls and other places too).

GM_addStyle('.wallimage { display:none; }');