Remove another item from the todo file

I believe the item of checking in the Makefiles for primary target
failing resulting in building the alt version (where desired) is now
done so this has also been removed from the todo file.

tmp/things-todo.md

@@ -1,5 +1,5 @@
 # A todo list of known things to check and/or do
-*Last updated: Thu 11 Jan 2024 16:33:53 UTC*
+*Last updated: Thu 11 Jan 2024 16:42:28 UTC*
 
 This document is primarily for [Cody Boone
 Ferguson](/winners.html#Cody_Boone_Ferguson) as he (that is I :-) ) wanted a way
@@ -48,8 +48,3 @@ the new issue.
 script do in fact have one. Also verify (mostly in earlier years) consistency in
 the way it is displayed and interactivity. The later years are probably done
 better.
-
-- Make it so that in the case of main versions failing to compile if there is an
-alt version have it compile it (as the main binary) instead. See
-<https://github.com/ioccc-src/temp-test-ioccc/pull/1793> for the example of what
-I did with 1985/sicherman.