Remove incorrect mapping from verify to assert. We should be using the more correct version in lib/libzpool/include/sys/zfs_context.h which will not optimize out the actual call in the assert based on NDEBUG

lib/libzfs/include/libzfs.h

@@ -521,15 +521,6 @@ extern int zfs_iscsi_perm_check(libzfs_handle_t *, char *, ucred_t *);
 extern int zfs_deleg_share_nfs(libzfs_handle_t *, char *, char *,
     void *, void *, int, zfs_share_op_t);
 
-/*
- * When dealing with nvlists, verify() is extremely useful
- */
-#ifdef NDEBUG
-#define	verify(EX)	((void)(EX))
-#else
-#define	verify(EX)	assert(EX)
-#endif
-
 /*
  * Utility function to convert a number to a human-readable form.
  */