remove the already-included packer config from top level struct
remove the already-included packer config from top level struct

dave2/packer,grubernaut/packer,ricardclau/packer,rnaveiras/packer,mitchellh/packer,mitchellh/packer,pecigonzalo/packer,paulmey/packer,pecigonzalo/packer,hashicorp/packer,paulmey/packer,paulmey/packer,dave2/packer,hashicorp/packer,rnaveiras/packer,paulmey/packer,mitchellh/packer,rnaveiras/packer,timsutton/packer,grubernaut/packer,dave2/packer,dave2/packer,pecigonzalo/packer,paulmey/packer,ricardclau/packer,timsutton/packer,grubernaut/packer,grubernaut/packer,rnaveiras/packer,timsutton/packer,pecigonzalo/packer,ricardclau/packer,grubernaut/packer,timsutton/packer,ricardclau/packer,hashicorp/packer,rnaveiras/packer,mitchellh/packer,paulmey/packer,timsutton/packer,ricardclau/packer,hashicorp/packer,ricardclau/packer,rnaveiras/packer,mitchellh/packer,dave2/packer,timsutton/packer,grubernaut/packer,dave2/packer