Migrate from Guzzle to Symfony HttpClient

composer.json

@@ -75,9 +75,7 @@
         "friendsofsymfony/oauth-server-bundle": "dev-master#dc8ff343363cf794d30eb1a123610d186a43f162",
         "friendsofsymfony/rest-bundle": "^3.6",
         "friendsofsymfony/user-bundle": "^3.2.1",
-        "guzzlehttp/guzzle": "^5.3.4",
         "guzzlehttp/psr7": "^2.6.2",
-        "guzzlehttp/streams": "^3.0",
         "html2text/html2text": "^4.3.1",
         "incenteev/composer-parameter-handler": "^2.2",
         "j0k3r/graby": "^2.4.5",
@@ -99,10 +97,6 @@
         "pagerfanta/twig": "^3.8",
         "php-amqplib/php-amqplib": "^3.6.1",
         "php-amqplib/rabbitmq-bundle": "^2.14.0",
-        "php-http/client-common": "^2.7.1",
-        "php-http/guzzle5-adapter": "^2.0",
-        "php-http/httplug": "^2.4",
-        "php-http/httplug-bundle": "^1.32",
         "pragmarx/recovery": "^0.2.1",
         "predis/predis": "^2.2.2",
         "psr/http-client": "^1.0.3",