removed guzzlehttp/promises package

Author: shailesh-google

composer.json

@@ -31,8 +31,7 @@
         "symfony/options-resolver": "^6.4.8",
         "symfony/property-access": "^6.4.9",
         "symfony/property-info": "^6.4.9",
-        "symfony/serializer": "^6.4.9",
-        "guzzlehttp/promises": "^2.0.3"
+        "symfony/serializer": "^6.4.9"
     },
     "require-dev": {
         "dms/phpunit-arraysubset-asserts": "^0.4.0",