Remove strndup declaration as it is not used by scrollkeeper.

textproc/scrollkeeper/files/patch-libs_i18n.c

@@ -1,25 +1,5 @@
 --- libs/i18n.c.orig	Sun Nov  9 18:05:36 2003
 +++ libs/i18n.c	Tue Feb 14 18:50:23 2006
-@@ -38,6 +38,19 @@ enum {
-  *    All rights reserved.
-  */
- 
-+/* XXX Implement strndup for FreeBSD. */
-+static char *
-+strndup(const char *str, size_t len) {
-+    char *ret;
-+
-+    if ((str == NULL || len < 0)) return(NULL);
-+    ret = (char *)malloc(len + 1);
-+    if (ret == NULL) return(NULL);
-+    strncpy(ret, str, len);
-+    ret[len] = '\0';
-+    return(ret);
-+}
-+
- /* Support function for compute_locale_variants. */
- static int explode_locale(const char *locale, char **language,
- 		char **territory, char **codeset, char **modifier)
 @@ -118,7 +131,7 @@ static char **compute_locale_variants(co
  		if ((i & ~mask) == 0) {
  			int length = strlen(language) + strlen(territory)