Delete old file transfer and rename fileTransfer2 to fileTransfer

cmd/fileTransfer.go

cmix/gateway/storeHostList.go

cmix/gateway/storeHostList_test.go

fileTransfer/batchBuilder.go

fileTransfer/callbackTracker/callbackTracker_test.go

fileTransfer/connect/listener.go

fileTransfer/connect/params.go

fileTransfer/connect/send.go

fileTransfer/connect/utils_test.go

fileTransfer/connect/wrapper.go

fileTransfer/connect/wrapper_test.go

fileTransfer/e2e/listener.go

fileTransfer/e2e/params.go

fileTransfer/e2e/send.go

fileTransfer/e2e/utils_test.go

fileTransfer/e2e/wrapper.go

fileTransfer/e2e/wrapper_test.go

fileTransfer/ftMessages.pb.go

fileTransfer/ftMessages.proto

fileTransfer/generateProto.sh