6583 remove whole-process swapping

*** 107,117 ****
          segmap_fault,
          segmap_faulta,
          SEGMAP_BADOP(int),      /* setprot */
          segmap_checkprot,
          segmap_kluster,
-         SEGMAP_BADOP(size_t),   /* swapout */
          SEGMAP_BADOP(int),      /* sync */
          SEGMAP_BADOP(size_t),   /* incore */
          SEGMAP_BADOP(int),      /* lockop */
          segmap_getprot,
          segmap_getoffset,
--- 107,116 ----