Remove unused structure member.
diff --git a/md4c/md4c.c b/md4c/md4c.c
index 314e3c2..4d07aa4 100644
--- a/md4c/md4c.c
+++ b/md4c/md4c.c
@@ -612,7 +612,6 @@ struct MD_UNICODE_FOLD_INFO_tag {
int src_codepoint;
int dest_codepoint0;
int dest_codepoint1;
- int dest_codepoint2;
} double_map[] = {
{ 0x00df, 0x0073, 0x0073 }, { 0x0130, 0x0069, 0x0307 }, { 0x0149, 0x02bc, 0x006e }, { 0x01f0, 0x006a, 0x030c }, { 0x0587, 0x0565, 0x0582 }, { 0x1e96, 0x0068, 0x0331 },
{ 0x1e97, 0x0074, 0x0308 }, { 0x1e98, 0x0077, 0x030a }, { 0x1e99, 0x0079, 0x030a }, { 0x1e9a, 0x0061, 0x02be }, { 0x1f50, 0x03c5, 0x0313 }, { 0x1f80, 0x1f00, 0x03b9 },