GitLab

"If keys have their default meanings, use precomputed string to save
lots of time" implies substitute-command-keys was slow 20+ years ago
when this was originally written.  But we were accidentally using the
"slow" branch for 5 years and no-one complained about speed (bug#13970).

* lisp/startup.el (normal-no-mouse-startup-screen, normal-about-screen):
Remove venerable code attempting to avoid substitute-command-keys.