Remove short_opt_str from completion_entry_t

This was a "cache" of dubious value that was also very confusing.
The idea was to express in one place all of the short options that
were allowed for a command, in a big string.  But it's simpler to
just construct that on-demand by walking the list of
complete_entry_opt_t.
Also remove some other dead code as part of cleanup.

0 files changed, 0 insertions, 0 deletions