[Perl/perl5] 96c520: locale.c: Don't compile unreachable code

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: 96c520ef45c30a6b3a4d3bbeeb51e4ce70361f99
      
https://github.com/Perl/perl5/commit/96c520ef45c30a6b3a4d3bbeeb51e4ce70361f99
  Author: Karl Williamson <k...@cpan.org>
  Date:   2023-08-13 (Sun, 13 Aug 2023)

  Changed paths:
    M locale.c

  Log Message:
  -----------
  locale.c: Don't compile unreachable code

This code is attempting to compute the nl_langinfo() codeset of the
current locale.  If there is no LC_CTYPE available on the system, the
codeset must be 'C', and the only callers to this static function know
that, and return that answer without calling this function.  That means
this part of the function will never be executed.  So don't compile it.