Update service-account.md

Author: kawax

docs/service-account.md

@@ -213,45 +213,3 @@ GOOGLE_SERVICE_ACCOUNT_JSON_LOCATION='{"type": "service_account", "project_id":
 ```
 
 This approach eliminates the need to store a separate JSON file and makes deployment easier, especially in containerized environments or CI/CD pipelines.
-
-### Using Credentials Array Instead of File
-
-You can also pass credentials as an array instead of a file path:
-
-```php
-// config/google.php
-'service' => [
-    'enable' => true,
-    'file' => [
-        'type' => 'service_account',
-        'project_id' => env('GOOGLE_PROJECT_ID'),
-        'private_key_id' => env('GOOGLE_PRIVATE_KEY_ID'),
-        'private_key' => env('GOOGLE_PRIVATE_KEY'),
-        'client_email' => env('GOOGLE_CLIENT_EMAIL'),
-        'client_id' => env('GOOGLE_CLIENT_ID'),
-        'auth_uri' => 'https://accounts.google.com/o/oauth2/auth',
-        'token_uri' => 'https://oauth2.googleapis.com/token',
-        'auth_provider_x509_cert_url' => 'https://www.googleapis.com/oauth2/v1/certs',
-        'client_x509_cert_url' => env('GOOGLE_CLIENT_CERT_URL'),
-    ],
-],
-```
-
-### Multiple Service Accounts
-
-For applications that need to access different sets of spreadsheets, you can configure multiple service accounts and switch between them:
-
-```php
-// Create a separate client for a different service account
-$client = new \Revolution\Google\Client\GoogleApiClient([
-    'service' => [
-        'enable' => true,
-        'file' => storage_path('app/another-service-account.json'),
-    ],
-]);
-
-$sheets = new \Revolution\Google\Sheets\SheetsClient();
-$sheets->setService($client->make('sheets'));
-```
-
-This setup allows you to manage different authentication contexts for different parts of your application.