4391 panic system rather than corrupting pool if we hit bug 4390
Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Approved by: Gordon Ross <gwr@nexenta.com>

@@ -18,11 +18,11 @@
  *
  * CDDL HEADER END
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2016 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2014 by Delphix. All rights reserved.
  */
 
 #ifndef _SYS_ZFS_DEBUG_H
 #define _SYS_ZFS_DEBUG_H
 

@@ -57,11 +57,10 @@
 #define ZFS_DEBUG_MODIFY                (1 << 4)
 #define ZFS_DEBUG_SPA                   (1 << 5)
 #define ZFS_DEBUG_ZIO_FREE              (1 << 6)
 #define ZFS_DEBUG_HISTOGRAM_VERIFY      (1 << 7)
 #define ZFS_DEBUG_METASLAB_VERIFY       (1 << 8)
-#define ZFS_DEBUG_INDIRECT_REMAP        (1 << 9)
 
 #ifdef ZFS_DEBUG
 extern void __dprintf(const char *file, const char *func,
     int line, const char *fmt, ...);
 #define dprintf(...) \