Let's face it some of the taunts which come with models or skins are not really appropriate at all for use in any SP or MP form. They are just examples of the character's voice that the maker has gone to-- sometimes great lengths, to acquire from the films. Some models are just full of quite useless phrases.
Is there a mod, or can someone come up with a mod to edit the taunts you get with a model so you can ditch the ones you do not like and keep only those you do?
That is true but you don't need a mod to edit the sounds of certain characters. All you need is WinZip. Go into the base folder of jk2 and open up assets1.pk3. There you'll find the folder sound\chars\kyle\misc there are all the sounds you need like taunt, choke, pushed etc. Now you can start replacing those you don't like with other sounds. Just make sure you replace the old files. Hope that'll help ya.