ORIGINAL: mlockett
It's almost as easy as putting toothpaste back in the tube. 
You can try playing with a gate and adjusting the threashold... that might reduce it some and make it less pronounced, but it won't get it all out.
This little trick works better if you reverse the audio first, so the gate is opening after the reverb tail. Then reverse the audio again. Voila! No reverb tail! But, both of these suggestions leave reverb in the middle of the words (or whatever).
Regards,
David
BTW, I have used this to help partially remove echo from spoken word recordings done in terrible environments.