Merge pull request #605 from nats-io/fix_server_dep

Fixed NATS Server dep

.travis.yml

@@ -2,12 +2,9 @@ language: go
 go:
 - 1.15.x
 - 1.14.x
-env:
-- GO111MODULE=off
 go_import_path: github.com/nats-io/nats.go
 install:
 - go get -t ./...
-- go get github.com/nats-io/nats-server
 - go get github.com/mattn/goveralls
 - go get github.com/wadey/gocovmerge
 - go get -u honnef.co/go/tools/cmd/staticcheck