Removing currencies that were supported with WorldPay, but are not with Wells Fargo

Change-Id: Iafff4c7bc6657ed662d736a5fd169fff6edf0344
Making sure gateway is recorded in antimessages as well as regular messages, so it can make it into the message header.

Change-Id: If2255ec1576ae3017408c8a688519e39856dcf9f