remove dead code.
remove dead code.

continues work from a629f1655b3ded11a628422b278b85c2b8ee2969

markpeek/packer,bryson/packer,tsmolka/packer,jimmythedog/packer,mitchellh/packer,routelastresort/packer,rickard-von-essen/packer,dave2/packer,dave2/packer,tb3088/packer,rnaveiras/packer,taliesins/packer,timsutton/packer,monkeylittleinc/packer,smaato/packer,quantang/packer,KohlsTechnology/packer,ricardclau/packer,legal90/packer,grubernaut/packer,mkuzmin/packer,smaato/packer,taliesins/packer,jen20/packer,legal90/packer,mitchellh/packer,routelastresort/packer,ricardclau/packer,p1-nico/packer,mkuzmin/packer,timsutton/packer,tas50/packer,routelastresort/packer,rnaveiras/packer,bryson/packer,ricardclau/packer,pieter-lazzaro/packer,rickard-von-essen/packer,arizvisa/packer,tb3088/packer,sneal/packer,boumenot/packer,smaato/packer,rickard-von-essen/packer,tb3088/packer,routelastresort/packer,grubernaut/packer,pieter-lazzaro/packer,mkuzmin/packer,KohlsTechnology/packer,p1-nico/packer,pvandervelde/packer,monkeylittleinc/packer,KohlsTechnology/packer,c22/packer,jen20/packer,pvandervelde/packer,sneal/packer,sean-/packer,arizvisa/packer,ChrisLundquist/packer,grubernaut/packer,rnaveiras/packer,pvanbuijtene/packer,ChrisLundquist/packer,legal90/packer,bryson/packer,markpeek/packer,hashicorp/packer,markpeek/packer,jimmythedog/packer,rickard-von-essen/packer,markpeek/packer,sean-/packer,paulmey/packer,life360/packer,p1-nico/packer,tas50/packer,dave2/packer,c22/packer,mafrosis/packer,youhong316/packer,boumenot/packer,paulmey/packer,pecigonzalo/packer,youhong316/packer,dayglojesus/packer,mafrosis/packer,ChrisLundquist/packer,monkeylittleinc/packer,samdunne/packer,p1-nico/packer,smaato/packer,life360/packer,jen20/packer,sneal/packer,KohlsTechnology/packer,bryson/packer,hashicorp/packer,tas50/packer,pvandervelde/packer,jimmythedog/packer,mkuzmin/packer,c22/packer,paulmey/packer,smaato/packer,markpeek/packer,legal90/packer,pecigonzalo/packer,arizvisa/packer,paulmey/packer,taliesins/packer,dayglojesus/packer,timsutton/packer,pieter-lazzaro/packer,tsmolka/packer,rickard-von-essen/packer,tsmolka/packer,zhuzhih2017/packer,bryson/packer,pieter-lazzaro/packer,quantang/packer,timsutton/packer,KohlsTechnology/packer,legal90/packer,atlassian/packer,dayglojesus/packer,zhuzhih2017/packer,pvanbuijtene/packer,p1-nico/packer,mitchellh/packer,pvandervelde/packer,sneal/packer,tb3088/packer,dave2/packer,arizvisa/packer,life360/packer,life360/packer,tas50/packer,taliesins/packer,smaato/packer,zhuzhih2017/packer,bryson/packer,boumenot/packer,sean-/packer,zhuzhih2017/packer,atlassian/packer,pecigonzalo/packer,KohlsTechnology/packer,ChrisLundquist/packer,sneal/packer,grubernaut/packer,arizvisa/packer,paulmey/packer,markpeek/packer,atlassian/packer,mwhooker/packer,c22/packer,mwhooker/packer,tsmolka/packer,quantang/packer,grubernaut/packer,samdunne/packer,samdunne/packer,pvandervelde/packer,mkuzmin/packer,tb3088/packer,tas50/packer,timsutton/packer,mitchellh/packer,timsutton/packer,rnaveiras/packer,c22/packer,ChrisLundquist/packer,youhong316/packer,samdunne/packer,sean-/packer,mafrosis/packer,tb3088/packer,ricardclau/packer,sean-/packer,pvandervelde/packer,mwhooker/packer,samdunne/packer,quantang/packer,pvanbuijtene/packer,rnaveiras/packer,mwhooker/packer,atlassian/packer,mafrosis/packer,ChrisLundquist/packer,dave2/packer,paulmey/packer,zhuzhih2017/packer,youhong316/packer,mitchellh/packer,tas50/packer,boumenot/packer,pvanbuijtene/packer,pieter-lazzaro/packer,rnaveiras/packer,jen20/packer,taliesins/packer,hashicorp/packer,hashicorp/packer,mwhooker/packer,zhuzhih2017/packer,ricardclau/packer,mkuzmin/packer,pieter-lazzaro/packer,jimmythedog/packer,tsmolka/packer,pvanbuijtene/packer,routelastresort/packer,dayglojesus/packer,arizvisa/packer,dayglojesus/packer,youhong316/packer,ricardclau/packer,quantang/packer,sean-/packer,taliesins/packer,dave2/packer,pecigonzalo/packer,tsmolka/packer,atlassian/packer,jen20/packer,c22/packer,mafrosis/packer,youhong316/packer,jimmythedog/packer,monkeylittleinc/packer,monkeylittleinc/packer,atlassian/packer,grubernaut/packer,jen20/packer,life360/packer,boumenot/packer,p1-nico/packer