remove nonexistent function "ndbseek"

Reference: /n/sources/patch/applied/ndbseek
Date: Mon Apr 28 16:20:03 CES 2008
Signed-off-by: quanstro@quanstro.net

--- /sys/include/ndb.h	Mon Apr 28 16:19:58 2008
+++ /sys/include/ndb.h	Mon Apr 28 16:19:57 2008
@@ -148,7 +148,6 @@
 int		ndbreopen(Ndb*);
 Ndbtuple*	ndbreorder(Ndbtuple*, Ndbtuple*);
 Ndbtuple*	ndbsearch(Ndb*, Ndbs*, char*, char*);
-long		ndbseek(Ndb*, long);
 void		ndbsetval(Ndbtuple*, char*, int);
 Ndbtuple*	ndbsnext(Ndbs*, char*, char*);
 Ndbtuple*	ndbsubstitute(Ndbtuple*, Ndbtuple*, Ndbtuple*);