What can a person do to remove venom from snake bites?

You can't: You can't remove the venom from the bite -- it's distributed very quickly. Even pump extractor kits don't work well, and cutting into the bite or trying to suck out the venom isn't recommended either. But you can get the person to medical help as quickly as possible, where antivenom can be administered. More info here: http://www.Nlm.Nih.Gov/medlineplus/ency/article/000031.Htm.

Dr Ali agreed

Nothing: Once a venomous snake has bitten, the venom gets into the system so quickly that no methods known can remove sufficient amounts. The only treatment is Antivenin at a medical facility!

Dr Pappas agreed