Remove HTML slides field for talks

Fixes #335

config/core.entity_form_display.node.talk.default.yml

@@ -8,12 +8,10 @@ dependencies:
     - field.field.node.talk.field_events
     - field.field.node.talk.field_excerpt
     - field.field.node.talk.field_slides
-    - field.field.node.talk.field_slides_html
     - field.field.node.talk.field_type
     - field.field.node.talk.field_video
     - node.type.talk
   module:
-    - link
     - paragraphs
     - path
     - scheduler
@@ -68,14 +66,6 @@ content:
     third_party_settings: {  }
     type: speakerdeck_widget
     region: content
-  field_slides_html:
-    weight: 26
-    settings:
-      placeholder_url: ''
-      placeholder_title: ''
-    third_party_settings: {  }
-    type: link_default
-    region: content
   field_type:
     weight: 1
     settings: {  }