[bazel] Remove k8s targets

`rules_k8s` was archived and is no longer supported. Instead
of trying to make it work again, deleting so we can make the
move from `rules_docker` to `rules_oci`, and then try and pick
things up again.

Author: shs96c

WORKSPACE

@@ -288,35 +288,6 @@ container_pull(
     repository = "selenium/standalone-chrome-debug",
 )
 
-http_archive(
-    name = "io_bazel_rules_k8s",
-    sha256 = "ce5b9bc0926681e2e7f2147b49096f143e6cbc783e71bc1d4f36ca76b00e6f4a",
-    strip_prefix = "rules_k8s-0.7",
-    urls = ["https://github.com/bazelbuild/rules_k8s/archive/refs/tags/v0.7.tar.gz"],
-)
-
-load("@io_bazel_rules_k8s//k8s:k8s.bzl", "k8s_defaults", "k8s_repositories")
-
-k8s_repositories()
-
-load(
-    "@io_bazel_rules_go//go:deps.bzl",
-    "go_register_toolchains",
-    "go_rules_dependencies",
-)
-
-go_rules_dependencies()
-
-go_register_toolchains()
-
-k8s_defaults(
-    name = "k8s_dev",
-    cluster = "docker-desktop",
-    image_chroot = "localhost:5000",
-    kind = "deployment",
-    namespace = "selenium",
-)
-
 load("//common:repositories.bzl", "pin_browsers")
 
 pin_browsers()