Remove "register" declarations

This finishes the removal of register declarations started by
eb578fdb5569b91c28466a4d1939e381ff6ceaf4.  It neglected the ones in
function parameter declarations, and didn't include things in dist, ext,
and lib, which this does include

1 files changed, 1 insertions, 1 deletions

diff --git a/doop.c b/doop.c
index 87bd180bc6..519e4cee1c 100644
--- a/doop.c
+++ b/doop.c
@@ -671,7 +671,7 @@ Perl_do_trans(pTHX_ SV *sv)
 }
 
 void
-Perl_do_join(pTHX_ register SV *sv, SV *delim, register SV **mark, register SV **sp)
+Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp)
 {
     dVAR;
     SV ** const oldmark = mark;