builder/amazon/chroot: remove unused comment
builder/amazon/chroot: remove unused comment

suma/packer,TranscendComputing/packer,patricklucas/packer,Kaixiang/packer,Kaixiang/packer,suma/packer,suma/packer,Kaixiang/packer,TranscendComputing/packer,TranscendComputing/packer,patricklucas/packer,patricklucas/packer,Kaixiang/packer,suma/packer,TranscendComputing/packer,patricklucas/packer