Use built version of go 1.11.4 in online unbuilt/URL buildpack [#163089977]
Use built version of go 1.11.4 in online unbuilt/URL buildpack [#163089977]

Co-authored-by: David Freilich <0106e5ee349bb58d7c51800b6acf5b57cf80aef6@pivotal.io>

cloudfoundry/go-buildpack,cloudfoundry/go-buildpack,cloudfoundry/go-buildpack