remove the atomic-installer directory

These files are stored and used from the fedora-lorax-templates [1]
repo. They haven't been used/updated from this location in a long time.

[1] https://pagure.io/fedora-lorax-templates

atomic-installer/lorax-configure-repo.tmpl

@@ -1,8 +0,0 @@
-## Lorax template to configure Anaconda to use the local OSTree
-## repository on disk.
-
-<%page args="ostree_osname, ostree_ref"/>
-append usr/share/anaconda/interactive-defaults.ks "ostreesetup --nogpg --osname=${ostree_osname} --remote=${ostree_osname} --url=file:////run/install/repo/content/repo --ref=${ostree_ref}\n"
-append usr/share/anaconda/interactive-defaults.ks "services --disabled cloud-init,cloud-config,cloud-final,cloud-init-local\n"
-append usr/share/anaconda/interactive-defaults.ks "%post --erroronfail\nrm -f /etc/ostree/remotes.d/${ostree_osname}.conf\nostree remote add --set=gpg-verify=false fedora-atomic 'https://dl.fedoraproject.org/pub/fedora/linux/atomic/22/'\n%end\n"
-

atomic-installer/lorax-embed-repo.tmpl

@@ -1,11 +0,0 @@
-## Lorax template to embed an OSTree repository into the installer.iso
-## and configure an interactive installer use to look for it.
-##
-## Note that we pull with depth=0 to only get *one* commit into the
-## ISO, because we obviously don't want the full history.
-
-<%page args="workdir, ostree_osname, ostree_repo, ostree_ref"/>
-runcmd mkdir -p ${workdir}/iso-graft/content/repo
-runcmd ostree --repo=${workdir}/iso-graft/content/repo init --mode=archive-z2
-runcmd ostree --repo=${workdir}/iso-graft/content/repo remote add ostree-mirror --set=gpg-verify=false ${ostree_repo}
-runcmd ostree --repo=${workdir}/iso-graft/content/repo pull --mirror ostree-mirror ${ostree_ref}