Upgrade k8s.io/client-go to version 2

vendor/google.golang.org/appengine/internal/internal.go

@@ -10,11 +10,6 @@ package internal
 
 import (
 	"fmt"
-	"io"
-	"log"
-	"net/http"
-	"net/url"
-	"os"
 
 	"github.com/golang/protobuf/proto"
 
@@ -109,35 +104,6 @@ func (e *CallError) IsTimeout() bool {
 	return e.Timeout
 }
 
-func Main() {
-	installHealthChecker(http.DefaultServeMux)
-
-	port := "8080"
-	if s := os.Getenv("PORT"); s != "" {
-		port = s
-	}
-
-	if err := http.ListenAndServe(":"+port, http.HandlerFunc(handleHTTP)); err != nil {
-		log.Fatalf("http.ListenAndServe: %v", err)
-	}
-}
-
-func installHealthChecker(mux *http.ServeMux) {
-	// If no health check handler has been installed by this point, add a trivial one.
-	const healthPath = "/_ah/health"
-	hreq := &http.Request{
-		Method: "GET",
-		URL: &url.URL{
-			Path: healthPath,
-		},
-	}
-	if _, pat := mux.Handler(hreq); pat != healthPath {
-		mux.HandleFunc(healthPath, func(w http.ResponseWriter, r *http.Request) {
-			io.WriteString(w, "ok")
-		})
-	}
-}
-
 // NamespaceMods is a map from API service to a function that will mutate an RPC request to attach a namespace.
 // The function should be prepared to be called on the same message more than once; it should only modify the
 // RPC request the first time.