Remove Hax module

it is not currently the answer to all our current prayers

See https://gitlab.com/agaric/raw-notes/blob/master/content/notes/2019-08-31-hax-and-drupal.md

composer.json

@@ -20,7 +20,6 @@
         "drupal/empty_page": "^2.0",
         "drupal/field_token_value": "^1.0",
         "drupal/fixed_block_content": "^1.0",
-        "drupal/hax": "^3.1",
         "drupal/link_attributes": "^1.9",
         "drupal/mailchimp": "^1.10",
         "drupal/migrate_plus": "^4.2",

config/sync/hax.settings.yml

@@ -1,18 +0,0 @@
-hax_autoload_element_node_view: true
-hax_autoload_element_list: 'oer-schema lrn-aside grid-plate tab-list magazine-cover video-player image-compare-slider license-element self-check multiple-choice lrn-table hero-banner task-list media-image lrndesign-blockquote meme-maker a11y-gif-player paper-audio-player wikipedia-query lrn-vocab lrn-math person-testimonial citation-element code-editor place-holder stop-note q-r wave-player'
-hax_project_location: 'https://webcomponents.psu.edu/cdn/'
-hax_project_location_other: ''
-hax_youtube_key: ''
-hax_memegenerator_key: ''
-hax_vimeo_key: ''
-hax_giphy_key: ''
-hax_unsplash_key: ''
-hax_flickr_key: ''
-hax_pixabay_key: ''
-_core:
-  default_config_hash: orzciTl55yn6xL-xaWqg-lZYMYxAQaCvWOlZHGBqTBA
-hax_googlepoly_key: ''
-actions: null
-form_build_id: form-K6VQRHzrtFHUtG1Ap_Q6iLrn-t2-bmKNXaC9MHP6z5Y
-form_token: kOMJGX5wT5lgghhvLRu0o3PS3ZlV9PXqX4NgwiNChMQ
-form_id: hax_settings