Remove viewingHint addition to the IIIF Sequence

By removing this, UV will not render the "two up" view when an item has
several canvases.

app/assets/stylesheets/mdl.scss

@@ -1514,6 +1514,10 @@ a.view-text:hover {
 		}
 	}
 
+	.thumb.oneCol:focus {
+		outline: none;
+	}
+
 	.title {
 		color: white;
 	}

lib/mdl/iiif_manifest_formatter.rb

@@ -33,22 +33,9 @@ def format(doc, retries = 3)
         }
 
         apply_page_level_metadata(doc, parsed_response)
-        format_sequence(parsed_response)
         JSON.generate(parsed_response)
       end
 
-      def format_sequence(manifest)
-        sequence = Array(manifest['sequences'])[0]
-        canvases = Array(sequence['canvases'])
-        if sequence && canvases.size > 2
-          ###
-          # With this, UV will support "two-up" (side-by-side) pages
-          # in the viewer. Only makes sense visually if there are
-          # at least three canvases (pages).
-          manifest['sequences'][0]['viewingHint'] = 'paged'
-        end
-      end
-
       private
 
       ###

spec/lib/mdl/iiif_manifest_formatter_spec.rb

@@ -49,12 +49,6 @@ module MDL
             }
           JSON
         end
-
-        it 'applies a viewingHint of "paged" to the sequence' do
-          result = described_class.format(doc)
-          parsed_result = JSON.parse(result)
-          expect(parsed_result['sequences'][0]['viewingHint']).to eq('paged')
-        end
       end
 
       context 'with a multi-page document' do