fix: remove error block of code (#2163)

Author: bshaffer

README.md

@@ -40,7 +40,7 @@ composer installed.
 Once composer is installed, execute the following command in your project root to install this library:
 
 ```sh
-composer require google/apiclient:^2.12
+composer require google/apiclient:^2.12.1
 ```
 
 Finally, be sure to include the autoloader:
@@ -61,7 +61,7 @@ you want to keep in `composer.json`:
 ```json
 {
     "require": {
-        "google/apiclient": "^2.12"
+        "google/apiclient": "^2.12.1"
     },
     "scripts": {
         "pre-autoload-dump": "Google\\Task\\Composer::cleanup"

src/Client.php

@@ -49,7 +49,7 @@
  */
 class Client
 {
-  const LIBVER = "2.12.0";
+  const LIBVER = "2.12.1";
   const USER_AGENT_SUFFIX = "google-api-php-client/";
   const OAUTH2_REVOKE_URI = 'https://oauth2.googleapis.com/revoke';
   const OAUTH2_TOKEN_URI = 'https://oauth2.googleapis.com/token';
@@ -1255,13 +1255,6 @@ private function createApplicationDefaultCredentials()
       $credentials->setSub($sub);
     }
 
-    if ($credentials instanceof ServiceAccountCredentials && $this->isUsingJwtWithScope()) {
-      // tell the credentials to sign scopes into Self-Signed JWTs instead of
-      // calling the OAuth2 token endpoint
-      // @see https://google.aip.dev/auth/4111#scope-vs-audience
-      $credentials->useJwtAccessWithScope();
-    }
-
     // If we are not using FetchAuthTokenCache yet, create it now
     if (!$credentials instanceof FetchAuthTokenCache) {
       $credentials = new FetchAuthTokenCache(