Punt rc_xcalloc as nothing uses it

src/librc-misc.c

@@ -19,17 +19,6 @@
 # define S_IXUGO (S_IXUSR | S_IXGRP | S_IXOTH)
 #endif
 
-void *rc_xcalloc (size_t n, size_t size)
-{
-	void *value = calloc (n, size);
-
-	if (value)
-		return value;
-
-	ERRX
-}
-librc_hidden_def(rc_xcalloc)
-
 void *rc_xmalloc (size_t size)
 {
 	void *value = malloc (size);

src/librc.h

@@ -110,7 +110,6 @@ librc_hidden_proto(rc_strlist_join)
 librc_hidden_proto(rc_strlist_reverse)
 librc_hidden_proto(rc_update_deptree)
 librc_hidden_proto(rc_wait_service)
-librc_hidden_proto(rc_xcalloc)
 librc_hidden_proto(rc_xmalloc)
 librc_hidden_proto(rc_xrealloc)
 librc_hidden_proto(rc_xstrdup)

src/rc.h

@@ -166,7 +166,6 @@ extern FILE *rc_environ_fd;
 /* RC utility functions.
    Although not directly related to RC in general, they are used by RC
    itself and the supporting applications. */
-void *rc_xcalloc (size_t n, size_t size);
 void *rc_xmalloc (size_t size);
 void *rc_xrealloc (void *ptr, size_t size);
 char *rc_xstrdup (const char *str);