fix tests

api/results.go

api/utilsInterfaces_test.go

keyExchange/utils_test.go

network/ephemeral/testutil.go

network/follow.go

network/gateway/hostPool.go

network/gateway/hostpool_test.go

network/gateway/sender.go

network/manager.go

network/message/garbled_test.go

network/message/sendCmix_test.go

network/rounds/historical.go

single/manager_test.go