Eliminate 'swap' from struct regexp_internal.

It's been unused since commit e9105d30edfbaa7f in July 2009.

1 files changed, 0 insertions, 1 deletions

diff --git a/regexp.h b/regexp.h
index 9cdc009c2f..6f79be7349 100644
--- a/regexp.h
+++ b/regexp.h
@@ -119,7 +119,6 @@ struct reg_code_block {
 	/* during matching */						\
 	U32 lastparen;			/* last open paren matched */	\
 	U32 lastcloseparen;		/* last close paren matched */	\
-	regexp_paren_pair *swap;	/* Unused: 5.10.1 and later */	\
 	/* Array of offsets for (@-) and (@+) */			\
 	regexp_paren_pair *offs;					\
 	/* saved or original string so \digit works forever. */		\