Respond to code review feedback

- Only return one field from the query for now (the search phrase itself)
- Remove console logging on the success path, and simplify the error path message.

Eventually this will get refactored into something different, but we're deciding to stay with this path for the moment.

app/views/search/_trigger_tacos.html.erb

@@ -2,11 +2,8 @@ $.ajax({
   type: "POST",
   url: "<%= ENV.fetch('TACOS_URL', '') %>",
   contentType: 'application/json',
-  data: '{ "query": "{ logSearchEvent( searchTerm: \\"<%= params[:q] %>\\" sourceSystem: \\"bento\\" ) { phrase source } }" }',
+  data: '{ "query": "{ logSearchEvent( searchTerm: \\"<%= params[:q] %>\\" sourceSystem: \\"bento\\" ) { phrase } }" }',
   dataType: 'json'
-}).success(function (msg) {
-  console.log(msg.data.logSearchEvent);
 }).fail(function (xhr, textStatus ) {
-  console.log('Failure looking up search in Tacos:');
   console.log(xhr);
 });