MAGETWO-51898: [Github] Incorrect CAPTCHA by user loses form entries. #4138

Author: Bohdan Korablov

app/code/Magento/Contact/composer.json

@@ -5,7 +5,6 @@
         "php": "~5.5.22|~5.6.0|~7.0.0",
         "magento/module-config": "100.0.*",
         "magento/module-store": "100.0.*",
-        "magento/module-backend": "100.0.*",
         "magento/module-customer": "100.0.*",
         "magento/module-cms": "100.0.*",
         "magento/framework": "100.0.*"