Removed custom_css setting

• Removed:
- custom_css setting, controller, locales

app/controllers/custom_css_controller.rb

@@ -1,10 +0,0 @@
-# frozen_string_literal: true
-
-class CustomCssController < ApplicationController
-  before_action :set_cache_headers
-
-  def show
-    skip_session!
-    render plain: Setting.custom_css || '', content_type: 'text/css'
-  end
-end

app/javascript/styles/gabsocial/forms.scss

@@ -778,7 +778,6 @@ code {
 .form_admin_settings_site_description,
 .form_admin_settings_site_extended_description,
 .form_admin_settings_site_terms,
-.form_admin_settings_custom_css,
 .form_admin_settings_closed_registrations_message {
   textarea {
     font-family: $font-monospace, monospace;

app/models/form/admin_settings.rb

@@ -23,7 +23,6 @@ class Form::AdminSettings
     peers_api_enabled
     show_known_fediverse_at_about_page
     preview_sensitive_media
-    custom_css
     profile_directory
     thumbnail
     hero

app/views/admin/settings/edit.html.haml

@@ -73,7 +73,6 @@
     = f.input :closed_registrations_message, as: :text, wrapper: :with_block_label, label: t('admin.settings.registrations.closed_message.title'), hint: t('admin.settings.registrations.closed_message.desc_html'), input_html: { rows: 8 }
     = f.input :site_extended_description, wrapper: :with_block_label, as: :text, label: t('admin.settings.site_description_extended.title'), hint: t('admin.settings.site_description_extended.desc_html'), input_html: { rows: 8 }
     = f.input :site_terms, wrapper: :with_block_label, as: :text, label: t('admin.settings.site_terms.title'), hint: t('admin.settings.site_terms.desc_html'), input_html: { rows: 8 }
-    = f.input :custom_css, wrapper: :with_block_label, as: :text, input_html: { rows: 8 }, label: t('admin.settings.custom_css.title'), hint: t('admin.settings.custom_css.desc_html')
 
   .actions
     = f.button :button, t('generic.save_changes'), type: :submit

app/views/layouts/application.html.haml

@@ -49,9 +49,6 @@
     = javascript_pack_tag "locale_#{I18n.locale}", integrity: true, crossorigin: 'anonymous'
     = csrf_meta_tags
 
-    - if Setting.custom_css.present?
-      = stylesheet_link_tag custom_css_path, media: 'all'
-
     = yield :header_tags
 
   %body{ class: body_classes }