aws: Drop undocumented option `profile`
aws: Drop undocumented option `profile`

This was added in 883acb18fac2c732e7fdf05822959bb45977ed00 to support
assume role and shared configuration file. This was never completed.

taliesins/packer,hashicorp/packer,taliesins/packer,pieter-lazzaro/packer,mkuzmin/packer,arizvisa/packer,tsmolka/packer,timsutton/packer,tb3088/packer,smaato/packer,taliesins/packer,grubernaut/packer,markpeek/packer,tb3088/packer,pieter-lazzaro/packer,arizvisa/packer,hashicorp/packer,bryson/packer,smaato/packer,dave2/packer,smaato/packer,markpeek/packer,tas50/packer,bryson/packer,routelastresort/packer,mitchellh/packer,sean-/packer,ricardclau/packer,paulmey/packer,pvandervelde/packer,dave2/packer,youhong316/packer,pieter-lazzaro/packer,tsmolka/packer,paulmey/packer,ChrisLundquist/packer,taliesins/packer,ChrisLundquist/packer,pvandervelde/packer,c22/packer,tb3088/packer,smaato/packer,jen20/packer,sean-/packer,pecigonzalo/packer,jen20/packer,mitchellh/packer,bryson/packer,tb3088/packer,arizvisa/packer,rnaveiras/packer,jen20/packer,pvandervelde/packer,dave2/packer,sean-/packer,grubernaut/packer,bryson/packer,KohlsTechnology/packer,pieter-lazzaro/packer,tsmolka/packer,p1-nico/packer,routelastresort/packer,dave2/packer,youhong316/packer,youhong316/packer,zhuzhih2017/packer,taliesins/packer,mkuzmin/packer,paulmey/packer,rnaveiras/packer,mkuzmin/packer,hashicorp/packer,routelastresort/packer,c22/packer,youhong316/packer,p1-nico/packer,p1-nico/packer,rnaveiras/packer,tb3088/packer,pecigonzalo/packer,KohlsTechnology/packer,markpeek/packer,ChrisLundquist/packer,arizvisa/packer,markpeek/packer,p1-nico/packer,timsutton/packer,markpeek/packer,tas50/packer,rnaveiras/packer,grubernaut/packer,pvandervelde/packer,paulmey/packer,timsutton/packer,c22/packer,ricardclau/packer,jen20/packer,rnaveiras/packer,mitchellh/packer,ricardclau/packer,p1-nico/packer,sean-/packer,taliesins/packer,c22/packer,pecigonzalo/packer,pecigonzalo/packer,bryson/packer,c22/packer,pieter-lazzaro/packer,zhuzhih2017/packer,mitchellh/packer,ricardclau/packer,atlassian/packer,mkuzmin/packer,timsutton/packer,smaato/packer,arizvisa/packer,zhuzhih2017/packer,pvandervelde/packer,KohlsTechnology/packer,smaato/packer,rnaveiras/packer,dave2/packer,jen20/packer,markpeek/packer,KohlsTechnology/packer,ricardclau/packer,ChrisLundquist/packer,tas50/packer,youhong316/packer,timsutton/packer,tas50/packer,jen20/packer,tsmolka/packer,KohlsTechnology/packer,mkuzmin/packer,dave2/packer,ChrisLundquist/packer,tsmolka/packer,atlassian/packer,mitchellh/packer,tb3088/packer,sean-/packer,hashicorp/packer,atlassian/packer,zhuzhih2017/packer,ChrisLundquist/packer,mkuzmin/packer,arizvisa/packer,pvandervelde/packer,grubernaut/packer,routelastresort/packer,paulmey/packer,tas50/packer,p1-nico/packer,pieter-lazzaro/packer,atlassian/packer,sean-/packer,routelastresort/packer,tsmolka/packer,KohlsTechnology/packer,zhuzhih2017/packer,c22/packer,paulmey/packer,atlassian/packer,zhuzhih2017/packer,grubernaut/packer,grubernaut/packer,timsutton/packer,bryson/packer,ricardclau/packer,atlassian/packer,youhong316/packer,tas50/packer