Remove show_sidebar partial and helper (#3334)

Author: jcoyne

app/helpers/blacklight/document_helper_behavior.rb

@@ -24,18 +24,6 @@ def document_class_prefix
     'blacklight-'
   end
 
-  ##
-  # Render the sidebar partial for a document
-  # This is used as an integration point by downstream apps to add to the
-  # default sidebar.
-  # See: https://github.com/geoblacklight/geoblacklight/blob/7d3c31c7af3362879b97e2c1351a2496c728c59c/app/helpers/blacklight_helper.rb#L7
-  #
-  # @param [SolrDocument] document
-  # @return [String]
-  def render_document_sidebar_partial(document)
-    render 'show_sidebar', document: document
-  end
-
   ##
   # return the Bookmarks on a set of documents (all bookmarks on the page)
   # @private

app/views/catalog/_show_sidebar.html.erb

@@ -1,5 +1,6 @@
 <%= render 'show_main_content' %>
 
 <% content_for(:sidebar) do %>
-  <%= render_document_sidebar_partial @document %>
+  <% presenter = document_presenter(@document) %>
+  <%= render presenter.view_config.sidebar_component.new(presenter: presenter) %>
 <% end %>

app/views/catalog/show.html.erb

@@ -7,6 +7,7 @@
 
   before do
     allow(presenter).to receive(:html_title).and_return('Heading')
+    allow(document).to receive(:more_like_this).and_return([])
     allow(view).to receive_messages(has_user_authentication_provider?: false)
     allow(view).to receive_messages(render_document_sidebar_partial: "Sidebar")
     allow(view).to receive_messages(current_search_session: nil, search_session: {})