NEX-4934 Add capability to remove special vdev
Reviewed by: Alex Aizman <alex.aizman@nexenta.com>
Reviewed by: Alek Pinchuk <alek.pinchuk@nexenta.com>

*** 19,28 ****
--- 19,29 ----
   * CDDL HEADER END
   */
  /*
   * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
   * Copyright (c) 2012 by Delphix. All rights reserved.
+  * Copyright 2015 Nexenta Systems, Inc.  All rights reserved.
   */
  
  #include <libzfs.h>
  
  #include <sys/zfs_context.h>
*** 459,469 ****
          if ((zhp = zpool_open(g_zfs, pool)) == NULL)
                  return (-1);
  
          record->zi_guid = strtoull(device, &end, 16);
          if (record->zi_guid == 0 || *end != '\0') {
!                 tgt = zpool_find_vdev(zhp, device, &isspare, &iscache, NULL);
  
                  if (tgt == NULL) {
                          (void) fprintf(stderr, "cannot find device '%s' in "
                              "pool '%s'\n", device, pool);
                          return (-1);
--- 460,471 ----
          if ((zhp = zpool_open(g_zfs, pool)) == NULL)
                  return (-1);
  
          record->zi_guid = strtoull(device, &end, 16);
          if (record->zi_guid == 0 || *end != '\0') {
!                 tgt = zpool_find_vdev(zhp, device, &isspare, &iscache, NULL,
!                     NULL);
  
                  if (tgt == NULL) {
                          (void) fprintf(stderr, "cannot find device '%s' in "
                              "pool '%s'\n", device, pool);
                          return (-1);