[Perl/perl5] dd5ca6: Revert "perl.h: Move #defining SETLOCALE_LOCK"

[Karl Williamson via perl5-changes]

  Branch: refs/heads/blead
  Home:   https://github.com/Perl/perl5
  Commit: dd5ca6941615cc2e8217c6e5619f768c79138e79
      
https://github.com/Perl/perl5/commit/dd5ca6941615cc2e8217c6e5619f768c79138e79
  Author: Karl Williamson <k...@cpan.org>
  Date:   2022-09-10 (Sat, 10 Sep 2022)

  Changed paths:
    M perl.h

  Log Message:
  -----------
  Revert "perl.h: Move #defining SETLOCALE_LOCK"

This reverts commit d0b8b8e8a48798446382161f988e6081140578d6.
I got ahead of myself.  This commit was premature