remove unused code from credential-helper

cmd/credential-helper/main.go

@@ -1,11 +1,8 @@
 package main
 
 import (
-	"bytes"
 	"encoding/json"
 	"fmt"
-	"io"
-	"net/http"
 	"os"
 	"path/filepath"
 
@@ -231,52 +228,3 @@ func saveSession(path string, session *SessionStore) error {
 
 	return nil
 }
-
-// exchangeSessionForRegistryToken exchanges the session token for a registry JWT
-func exchangeSessionForRegistryToken(sessionToken, appViewURL string) (string, error) {
-	// Call the AppView's /auth/exchange endpoint
-	exchangeURL := fmt.Sprintf("%s/auth/exchange", appViewURL)
-
-	reqBody := map[string]any{
-		"scope": []string{"repository:*:pull,push"},
-	}
-
-	body, err := json.Marshal(reqBody)
-	if err != nil {
-		return "", fmt.Errorf("failed to marshal request: %w", err)
-	}
-
-	req, err := http.NewRequest("POST", exchangeURL, bytes.NewReader(body))
-	if err != nil {
-		return "", fmt.Errorf("failed to create request: %w", err)
-	}
-	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("Authorization", "Bearer "+sessionToken)
-
-	client := &http.Client{}
-	resp, err := client.Do(req)
-	if err != nil {
-		return "", fmt.Errorf("failed to call exchange endpoint: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != http.StatusOK {
-		// Read response body for debugging
-		bodyBytes, _ := io.ReadAll(resp.Body)
-		return "", fmt.Errorf("exchange failed with status %d: %s", resp.StatusCode, string(bodyBytes))
-	}
-
-	var result struct {
-		Token       string `json:"token"`
-		AccessToken string `json:"access_token"`
-	}
-
-	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
-		return "", fmt.Errorf("failed to decode response: %w", err)
-	}
-
-	if result.Token != "" {
-		return result.Token, nil
-	}
-	return result.AccessToken, nil
-}