fix the port parse issue

go.mod

@@ -14,9 +14,6 @@ require (
 	github.com/go-errors/errors v1.0.2 // indirect
 	github.com/go-git/go-git/v5 v5.2.0
 	github.com/gopherjs/gopherjs v0.0.0-20200217142428-fce0ec30dd00 // indirect
-	github.com/gorilla/mux v1.7.4
-	github.com/inconshreveable/go-update v0.0.0-20160112193335-8152e7eb6ccf
-	github.com/klauspost/compress v1.10.10
 	github.com/kr/pretty v0.2.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
 	github.com/mattn/go-colorable v0.1.6 // indirect