Remove claro; it's now in Drupal core

Ref #109

composer.json

@@ -14,7 +14,6 @@
         "drupal-composer/drupal-scaffold": "^2.0.0",
         "drupal/antibot": "^1.2",
         "drupal/ckeditorheight": "^1.3",
-        "drupal/claro": "^1.0@alpha",
         "drupal/classitup": "dev-8.x-1.x as 1.x-dev",
         "drupal/comment_notify": "dev-1.x",
         "drupal/config_actions": "1.x-dev",
@@ -100,9 +99,6 @@
         },
         "enable-patching": true,
         "patches": {
-            "drupal/claro": {
-                "Broken Dropdown prevents Save": "https://www.drupal.org/files/issues/2019-09-18/broken-dropbutton-3079128.patch"
-            },
             "drupal/core": {
                 "Allow an install hook in profiles installing from configuration": "https://www.drupal.org/files/issues/2018-11-27/2982052-22.patch"
             },