somehow auto updated go mod

go.mod

@@ -34,7 +34,6 @@ require (
 	github.com/go-kit/kit v0.9.0 // indirect
 	github.com/go-redis/redis v6.15.2+incompatible
 	github.com/go-sql-driver/mysql v1.4.1
-	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/gocql/gocql v0.0.0-20190829130954-e163eff7a8c6
 	github.com/gogo/protobuf v1.2.2-0.20190730201129-28a6bbf47e48 // indirect
 	github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6 // indirect
@@ -59,8 +58,6 @@ require (
 	github.com/mattn/go-ieproxy v0.0.0-20190805055040-f9202b1cfdeb // indirect
 	github.com/mattn/go-isatty v0.0.9 // indirect
 	github.com/mattn/go-runewidth v0.0.4 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f // indirect
 	github.com/nats-io/gnatsd v1.4.1 // indirect
 	github.com/nats-io/go-nats v1.7.2 // indirect