diff --git a/test/library/env.go b/test/library/env.go
index d78f7d8b..0cf28a42 100644
--- a/test/library/env.go
+++ b/test/library/env.go
@@ -10,8 +10,6 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
-	"k8s.io/client-go/tools/clientcmd"
-	clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
 	"sigs.k8s.io/yaml"
 
 	auth1alpha1 "go.pinniped.dev/generated/latest/apis/concierge/authentication/v1alpha1"
@@ -69,47 +67,10 @@ type TestOIDCUpstream struct {
 
 // ProxyEnv returns a set of environment variable strings (e.g., to combine with os.Environ()) which set up the configured test HTTP proxy.
 func (e *TestEnv) ProxyEnv() []string {
-	vars := e.proxyVars()
-	if vars == nil {
-		return nil
-	}
-	res := make([]string, 0, len(vars))
-	for k, v := range vars {
-		res = append(res, k+"="+v)
-	}
-	return res
-}
-
-func (e *TestEnv) InjectProxyEnvIntoKubeconfig(kubeconfigYAML string) string {
-	proxyVars := e.proxyVars()
-	if proxyVars == nil {
-		return kubeconfigYAML
-	}
-
-	kubeconfig, err := clientcmd.Load([]byte(kubeconfigYAML))
-	require.NoError(e.t, err)
-	for i := range kubeconfig.AuthInfos {
-		if exec := kubeconfig.AuthInfos[i].Exec; exec != nil {
-			for k, v := range proxyVars {
-				exec.Env = append(exec.Env, clientcmdapi.ExecEnvVar{Name: k, Value: v})
-			}
-		}
-	}
-
-	newYAML, err := clientcmd.Write(*kubeconfig)
-	require.NoError(e.t, err)
-	return string(newYAML)
-}
-
-func (e *TestEnv) proxyVars() map[string]string {
 	if e.Proxy == "" {
 		return nil
 	}
-	return map[string]string{
-		"http_proxy":  e.Proxy,
-		"https_proxy": e.Proxy,
-		"no_proxy":    "127.0.0.1",
-	}
+	return []string{"http_proxy=" + e.Proxy, "https_proxy=" + e.Proxy, "no_proxy=127.0.0.1"}
 }
 
 // IntegrationEnv gets the integration test environment from OS environment variables. This