GCP: Remove the deprecated google-json-key support

cmd/genkubedocs/gen_kube_docs.go

@@ -79,7 +79,6 @@ func main() {
 	case "kubeadm":
 		// resets global flags created by kubelet or other commands e.g.
 		// --azure-container-registry-config from pkg/credentialprovider/azure
-		// --google-json-key from pkg/credentialprovider/gcp
 		// --version pkg/version/verflag
 		pflag.CommandLine = pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
 

cmd/kubeadm/app/kubeadm.go

@@ -36,7 +36,6 @@ func Run() error {
 	// We do not want these flags to show up in --help
 	// These MarkHidden calls must be after the lines above
 	pflag.CommandLine.MarkHidden("version")
-	pflag.CommandLine.MarkHidden("google-json-key")
 	pflag.CommandLine.MarkHidden("log-flush-frequency")
 	pflag.CommandLine.MarkHidden("alsologtostderr")
 	pflag.CommandLine.MarkHidden("log-backtrace-at")

cmd/kubelet/app/options/globalflags.go

@@ -84,9 +84,6 @@ func addCredentialProviderFlags(fs *pflag.FlagSet) {
 	global := pflag.CommandLine
 	local := pflag.NewFlagSet(os.Args[0], pflag.ExitOnError)
 
-	// Note this is deprecated in the library that provides it, so we just allow that deprecation
-	// notice to pass through our registration here.
-	pflagRegister(global, local, "google-json-key")
 	// TODO(#58034): This is not a static file, so it's not quite as straightforward as --google-json-key.
 	// We need to figure out how ACR users can dynamically provide pull credentials before we can deprecate this.
 	pflagRegister(global, local, "azure-container-registry-config")

pkg/credentialprovider/gcp/BUILD

@@ -10,27 +10,19 @@ go_library(
     name = "go_default_library",
     srcs = [
         "doc.go",
-        "jwt.go",
         "metadata.go",
     ],
     importpath = "k8s.io/kubernetes/pkg/credentialprovider/gcp",
     deps = [
         "//pkg/credentialprovider:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/net:go_default_library",
         "//vendor/github.com/golang/glog:go_default_library",
-        "//vendor/github.com/spf13/pflag:go_default_library",
-        "//vendor/golang.org/x/oauth2:go_default_library",
-        "//vendor/golang.org/x/oauth2/google:go_default_library",
-        "//vendor/golang.org/x/oauth2/jwt:go_default_library",
     ],
 )
 
 go_test(
     name = "go_default_test",
-    srcs = [
-        "jwt_test.go",
-        "metadata_test.go",
-    ],
+    srcs = ["metadata_test.go"],
     embed = [":go_default_library"],
     deps = [
         "//pkg/credentialprovider:go_default_library",