[authy/php] remove abandoned and obsolete authy package

Author: nkissebe

core/composer.json

@@ -43,7 +43,6 @@
         "pelago/emogrifier": "7.0.*",
         "google/apiclient": "2.14.*",
         "guzzlehttp/guzzle": "6.5.*",
-        "authy/php": "3.0.*",
         "symfony/mailchimp-mailer": "v5.4.*",
         "phpdocumentor/reflection-docblock": "5.2.*",
         "bshaffer/oauth2-server-php": "1.11.*",