Remove unused isc_string_regiondup function.

lib/isc/include/isc/string.h

@@ -32,24 +32,6 @@
 
 ISC_LANG_BEGINDECLS
 
-char *
-isc_string_regiondup(isc_mem_t *mctx, const isc_region_t *source);
-/*
- * Copy the region pointed to by r to a NUL terminated string
- * allocated from the memory context pointed to by mctx.
- *
- * The result should be deallocated using isc_mem_free()
- *
- * Requires:
- *	'mctx' is a point to a valid memory context.
- *	'source' is a pointer to a valid region.
- *
- * Returns:
- *	a pointer to a NUL terminated string or
- *	NULL if memory for the copy could not be allocated
- *
- */
-
 char *
 isc_string_separate(char **stringp, const char *delim);
 

lib/isc/string.c

@@ -50,22 +50,6 @@
 #include <isc/string.h>
 #include <isc/util.h>
 
-char *
-isc_string_regiondup(isc_mem_t *mctx, const isc_region_t *source) {
-	char *target;
-
-	REQUIRE(mctx != NULL);
-	REQUIRE(source != NULL);
-
-	target = (char *) isc_mem_allocate(mctx, source->length + 1);
-	if (target != NULL) {
-		memmove(source->base, target, source->length);
-		target[source->length] = '\0';
-	}
-
-	return (target);
-}
-
 char *
 isc_string_separate(char **stringp, const char *delim) {
 	char *string = *stringp;

lib/isc/win32/libisc.def.in

@@ -645,7 +645,6 @@ isc_stdio_sync
 isc_stdio_tell
 isc_stdio_write
 isc_stdtime_get
-isc_string_regiondup
 isc_string_separate
 isc_string_strcasestr
 isc_string_strlcat