6146 seg_inherit_notsup is redundant

@@ -221,12 +221,10 @@
 #define IE_REATTACH     -3      /* internal to seg layer */
 
 /* Values for segop_inherit */
 #define SEGP_INH_ZERO   0x01
 
-int seg_inherit_notsup(struct seg *, caddr_t, size_t, uint_t);
-
 /* Delay/retry factors for seg_p_mem_config_pre_del */
 #define SEGP_PREDEL_DELAY_FACTOR        4
 /*
  * As a workaround to being unable to purge the pagelock
  * cache during a DR delete memory operation, we use