Remove ACI image building bits

The ACI OEM container image was used with rkt for GCE. For long time
this has been migrated to systemd-nspawn and now systemd-sysext.
Remove the unused build library code.

Author: pothos

build_library/oem_aci_util.sh

@@ -507,36 +507,6 @@ install_oem_package() {
     sudo rm -rf "${oem_tmp}"
 }
 
-# Write the OEM ACI file into the OEM partition.
-install_oem_aci() {
-    local oem_aci=$(_get_vm_opt OEM_ACI)
-    local aci_dir="${FLAGS_to}/oem-${oem_aci}-aci"
-    local aci_path="${aci_dir}/flatcar-oem-${oem_aci}.aci"
-    local binpkgflags=(--nogetbinpkg)
-
-    [ -n "${oem_aci}" ] || return 0
-
-    [ "${FLAGS_getbinpkg}" = "${FLAGS_TRUE}" ] &&
-    binpkgflags=(--getbinpkg --getbinpkgver="${FLAGS_getbinpkgver}")
-
-    # Build an OEM ACI if necessary, supplying build environment flags.
-    [ -e "${aci_path}" ] &&
-    info "ACI ${aci_path} exists; reusing it" ||
-    "${SCRIPT_ROOT}/build_oem_aci" \
-        --board="${BOARD}" \
-        --build_dir="${aci_dir}" \
-        "${binpkgflags[@]}" \
-        "${oem_aci}"
-
-    info "Installing ${oem_aci} OEM ACI"
-    sudo install -Dpm 0644 \
-        "${aci_path}" \
-        "${VM_TMP_ROOT}/oem/flatcar-oem-${oem_aci}.aci" ||
-    die "Could not install ${oem_aci} OEM ACI"
-    # Remove aci_dir if building ACI and installing it succeeded
-    rm -rf "${aci_dir}"
-}
-
 # Write the OEM sysext file into the OEM partition.
 install_oem_sysext() {
     local oem_sysext=$(_get_vm_opt OEM_SYSEXT)

build_library/vm_image_util.sh

@@ -117,7 +117,6 @@ setup_disk_image "${FLAGS_disk_layout}"
 
 # Optionally install any OEM packages
 install_oem_package
-install_oem_aci
 install_oem_sysext
 run_fs_hook