Revert "Add actual result for the example"

Revert "Add actual result for the example"

This reverts commit be67d10a813ae37512daacbbab9815eecd5e94ef.

We don't demo directives on directive doc pages, to avoid doing unnecessary
work at build time (not a big deal here) and to avoid broken directives if
the plugin is not enabled.

This fact could probably be documented better, but I don't want to mention
it on every page..