Remove two pieces of code (one disabled in revision 39665 and another derived

from the first one) that is not used for the last 12 years.

lib/libstand/bzipfs.c

@@ -81,14 +81,6 @@ struct fs_ops bzipfs_fsops = {
 };
 #endif
 
-#if 0
-void *
-calloc(int items, size_t size)
-{
-    return(malloc(items * size));
-}
-#endif
-
 static int
 bzf_fill(struct bz_file *bzf)
 {

lib/libstand/gzipfs.c

@@ -62,14 +62,6 @@ struct fs_ops gzipfs_fsops = {
     null_readdir
 };
 
-#if 0
-void *
-calloc(int items, size_t size)
-{
-    return(malloc(items * size));
-}
-#endif
-
 static int
 zf_fill(struct z_file *zf)
 {