the other middleware perf PR removes this

lib/page-data.js

@@ -88,18 +88,6 @@ async function versionPages (obj, version, langCode, site) {
       : obj.page.intro
   }
 
-  // Surface any Liquid within Liquid that may not have been parsed, since we are not doing
-  // parsing round trips above in order to protect our warm-server performance.
-  if (obj.renderedFullTitle.includes('}')) {
-    console.error(`WARNING: found Liquid in parsed title on ${obj.page.fullPath}`)
-  }
-  if (obj.renderedShortTitle && obj.renderedShortTitle.includes('}')) {
-    console.error(`WARNING: found Liquid in parsed short title on ${obj.page.fullPath}`)
-  }
-  if (obj.renderedIntro && obj.renderedIntro.includes('}')) {
-    console.error(`WARNING: found Liquid in parsed intro on ${obj.page.fullPath}`)
-  }
-
   if (!obj.childPages) return obj
 
   const versionedChildPages = await Promise.all(obj.childPages