bazel: remote oci rules, packer building

Container building in Bazel seems like a dead end right now. This is
removed.

I'm splitting out a separate packer build script from the run-docker
script.

WORKSPACE

@@ -7,31 +7,3 @@ http_archive(
     sha256 = "94c634d499558a76fa649edb13721dce6e98fb1e7018dfaeba3cd7a083945e91",
     build_file = "@//:gtest.BUILD",
 )
-
-## OCI
-# see https://github.com/bazel-contrib/rules_oci/releases/tag/v0.3.9
-http_archive(
-    name = "rules_oci",
-    sha256 = "f6125c9a123a2ac58fb6b13b4b8d4631827db9cfac025f434bbbefbd97953f7c",
-    strip_prefix = "rules_oci-0.3.9",
-    url = "https://github.com/bazel-contrib/rules_oci/releases/download/v0.3.9/rules_oci-v0.3.9.tar.gz",
-)
-
-load("@rules_oci//oci:dependencies.bzl", "rules_oci_dependencies")
-
-rules_oci_dependencies()
-
-load("@rules_oci//oci:repositories.bzl", "LATEST_CRANE_VERSION", "LATEST_ZOT_VERSION", "oci_register_toolchains")
-
-oci_register_toolchains(
-    name = "oci",
-    crane_version = LATEST_CRANE_VERSION,
-    # Uncommenting the zot toolchain will cause it to be used instead of crane for some tasks.
-    # Note that it does not support docker-format images.
-    # zot_version = LATEST_ZOT_VERSION,
-)
-
-# Optional, for oci_tarball rule
-load("@rules_pkg//:deps.bzl", "rules_pkg_dependencies")
-
-rules_pkg_dependencies()