title: Is there any way to disable image/attachment part for action text in Rails 6?
body: <p>Do we have a way to disable attachment for action text? something like below
  has_rich_text :content, attachment: false</p>
  
  <p>So that, We can remove active_storage_blobs, active_storage_attachments tables from db. Only having action_text_rich_texts table should meet the purpose in that case.</p>