remove AnsibleFest banner (#79156)

docs/docsite/.templates/banner.html

@@ -15,7 +15,7 @@
     }
     var banner = '';
       var extra_banner = '';
-    /*use extra_banner for when marketing wants something extra, like a survey or AnsibleFest notice */
+    /*use extra_banner for when marketing wants something extra, like a survey or AnsibleFest notice *
     var extra_banner =
       '<div id="latest_extra_banner_id" class="admonition important">' +
       '<br>' +
@@ -27,7 +27,7 @@
         '<a href="https://www.ansible.com/ansiblefest?intcmp=7013a000002tuDxAAI">Register now!</a> ' +
       '</p>' +
       '<br>' +
-      '</div>'; 
+      '</div>'; */
     // Create a banner if we're not on the official docs site
     if (location.host == "docs.testing.ansible.com") {
       document.write('<div id="testing_banner_id" class="admonition important">' +