Change embedded posts to use web UI (#31766)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

app/helpers/accounts_helper.rb

@@ -19,14 +19,6 @@ module AccountsHelper
     end
   end
 
-  def account_action_button(account)
-    return if account.memorial? || account.moved?
-
-    link_to ActivityPub::TagManager.instance.url_for(account), class: 'button logo-button', target: '_new' do
-      safe_join([logo_as_symbol, t('accounts.follow')])
-    end
-  end
-
   def account_formatted_stat(value)
     number_to_human(value, precision: 3, strip_insignificant_zeros: true)
   end

app/helpers/media_component_helper.rb

@@ -57,26 +57,6 @@ module MediaComponentHelper
     end
   end
 
-  def render_card_component(status, **options)
-    component_params = {
-      sensitive: sensitive_viewer?(status, current_account),
-      card: serialize_status_card(status).as_json,
-    }.merge(**options)
-
-    react_component :card, component_params
-  end
-
-  def render_poll_component(status, **options)
-    component_params = {
-      disabled: true,
-      poll: serialize_status_poll(status).as_json,
-    }.merge(**options)
-
-    react_component :poll, component_params do
-      render partial: 'statuses/poll', locals: { status: status, poll: status.preloadable_poll, autoplay: prefers_autoplay? }
-    end
-  end
-
   private
 
   def serialize_media_attachment(attachment)
@@ -86,22 +66,6 @@ module MediaComponentHelper
     )
   end
 
-  def serialize_status_card(status)
-    ActiveModelSerializers::SerializableResource.new(
-      status.preview_card,
-      serializer: REST::PreviewCardSerializer
-    )
-  end
-
-  def serialize_status_poll(status)
-    ActiveModelSerializers::SerializableResource.new(
-      status.preloadable_poll,
-      serializer: REST::PollSerializer,
-      scope: current_user,
-      scope_name: :current_user
-    )
-  end
-
   def sensitive_viewer?(status, account)
     if !account.nil? && account.id == status.account_id
       status.sensitive