don't set context.relativePath in Page.render (#33288)

lib/page.js

@@ -187,7 +187,6 @@ class Page {
       textOnly: true,
     })
 
-    context.relativePath = this.relativePath
     const html = await renderContentWithFallback(this, 'markdown', context)
 
     // Adding communityRedirect for Discussions, Sponsors, and Codespaces - request from Product