[Composer] Dropped unused guzzle dependencies (#691)

Author: ViniTou

composer.json

@@ -40,8 +40,6 @@
         "symfony/var-dumper": "^5.3.0",
         "ibexa/doctrine-schema": "~4.6.0@dev",
         "symfony-cmf/routing": "^2.3",
-        "guzzlehttp/guzzle": "^6.5",
-        "php-http/guzzle6-adapter": "^2.0",
         "nelmio/cors-bundle": "^2.0",
         "pagerfanta/pagerfanta": "^2.1",
         "doctrine/dbal": "^2.13.0",