Removes lingering libcfbuildpack reference

Author: Ryan Moran

go.mod

@@ -3,8 +3,6 @@ module github.com/paketo-community/rackup
 go 1.14
 
 require (
-	cloud.google.com/go v0.53.0 // indirect
-	github.com/cloudfoundry/dagger v0.0.0-20200527145232-311fc2f5c815
 	github.com/onsi/gomega v1.10.1
 	github.com/paketo-buildpacks/occam v0.0.16
 	github.com/paketo-buildpacks/packit v0.2.1