seg_inherit_notsup is redundant since segop_inherit checks for NULL properly

@@ -110,11 +110,10 @@
         .dump           = segmap_dump,
         .pagelock       = segmap_pagelock,
         .getmemid       = segmap_getmemid,
         .getpolicy      = segmap_getpolicy,
         .capable        = segmap_capable,
-        .inherit        = seg_inherit_notsup,
 };
 
 /*
  * Private segmap routines.
  */