Fix dependencies

vendor/k8s.io/client-go/tools/clientcmd/helpers.go

@@ -18,7 +18,6 @@ package clientcmd
 
 import (
 	"fmt"
-	"net/url"
 	"strconv"
 	"time"
 )
@@ -34,17 +33,3 @@ func ParseTimeout(duration string) (time.Duration, error) {
 	}
 	return 0, fmt.Errorf("Invalid timeout value. Timeout must be a single integer in seconds, or an integer followed by a corresponding time unit (e.g. 1s | 2m | 3h)")
 }
-
-func parseProxyURL(proxyURL string) (*url.URL, error) {
-	u, err := url.Parse(proxyURL)
-	if err != nil {
-		return nil, fmt.Errorf("could not parse: %v", proxyURL)
-	}
-
-	switch u.Scheme {
-	case "http", "https", "socks5":
-	default:
-		return nil, fmt.Errorf("unsupported scheme %q, must be http, https, or socks5", u.Scheme)
-	}
-	return u, nil
-}