segop_getpolicy already checks for a NULL op

@@ -748,17 +748,10 @@
         panic("segkmem badop");
         return (0);
 }
 
 /*ARGSUSED*/
-static lgrp_mem_policy_info_t *
-segkmem_getpolicy(struct seg *seg, caddr_t addr)
-{
-        return (NULL);
-}
-
-/*ARGSUSED*/
 static int
 segkmem_capable(struct seg *seg, segcapability_t capability)
 {
         if (capability == S_CAPABILITY_NOMINFLT)
                 return (1);

@@ -771,11 +764,10 @@
         .checkprot      = segkmem_checkprot,
         .kluster        = segkmem_kluster,
         .dump           = segkmem_dump,
         .pagelock       = segkmem_pagelock,
         .getmemid       = segkmem_getmemid,
-        .getpolicy      = segkmem_getpolicy,
         .capable        = segkmem_capable,
 };
 
 int
 segkmem_zio_create(struct seg *seg)