Don't change the config dir in standalone mode

We want to take the original docker configuration in standalone mode so
that we can run e2e tests against a containerd backed daemon

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>

pkg/e2e/framework.go

@@ -93,8 +93,14 @@ func NewParallelCLI(t *testing.T, opts ...CLIOption) *CLI {
 func NewCLI(t testing.TB, opts ...CLIOption) *CLI {
 	t.Helper()
 
-	configDir := t.TempDir()
-	initializePlugins(t, configDir)
+	var configDir string
+	if composeStandaloneMode {
+		hd, _ := os.UserHomeDir()
+		configDir = filepath.Join(hd, ".docker")
+	} else {
+		configDir = t.TempDir()
+		initializePlugins(t, configDir)
+	}
 
 	c := &CLI{
 		ConfigDir: configDir,