<nowiki>{{acronym-old}}</nowiki>

Re your edit summary, it's to remove pages from Special:WhatLinksHere/Template:acronym-old, per the post-deletion instructions.

Fix those instructions then. A redlink to a template can be clicked to reveal the deletion log, which saves some time (compared to typing the template name in the address bar).

Now, redlinks to deleted dictionary entries should be removed, sure. But that is because readers are generally not interested in log entries.