Revert go.{mod,sum} changes.

Signed-off-by: Gonzalo Paniagua Javier <gonzalo.mono@gmail.com>

go.mod

@@ -27,7 +27,6 @@ require (
 	github.com/imdario/mergo v0.3.7 // indirect
 	github.com/infobloxopen/go-trees v0.0.0-20190313150506-2af4e13f9062
 	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
-	github.com/libp2p/go-reuseport v0.0.1
 	github.com/matttproud/golang_protobuf_extensions v1.0.1
 	github.com/miekg/dns v1.1.22
 	github.com/opentracing-contrib/go-observer v0.0.0-20170622124052-a52f23424492 // indirect

go.sum

@@ -219,8 +219,6 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kylelemons/godebug v0.0.0-20170820004349-d65d576e9348/go.mod h1:B69LEHPfb2qLo0BaaOLcbitczOKLWTsrBG9LczfCD4k=
-github.com/libp2p/go-reuseport v0.0.1 h1:7PhkfH73VXfPJYKQ6JwS5I/eVcoyYi9IMNGc6FWpFLw=
-github.com/libp2p/go-reuseport v0.0.1/go.mod h1:jn6RmB1ufnQwl0Q1f+YxAj8isJgDCQzaaxIFYDhcYEA=
 github.com/lucas-clemente/aes12 v0.0.0-20171027163421-cd47fb39b79f/go.mod h1:JpH9J1c9oX6otFSgdUHwUBUizmKlrMjxWnIAjff4m04=
 github.com/lucas-clemente/quic-clients v0.1.0/go.mod h1:y5xVIEoObKqULIKivu+gD/LU90pL73bTdtQjPBvtCBk=
 github.com/lucas-clemente/quic-go v0.10.2/go.mod h1:hvaRS9IHjFLMq76puFJeWNfmn+H70QZ/CXoxqw9bzao=