MDEV-26178 Spider: remove HA_EXTRA_HAS_HA_EXTRA_USE_CMP_REF

HA_EXTRA_USE_CMP_REF is undefined, and remains so as of 11.5
c96b23f9

storage/spider/ha_spider.cc

@@ -1437,9 +1437,6 @@ int ha_spider::extra(
         DBUG_RETURN(error_num);
       break;
     case HA_EXTRA_STARTING_ORDERED_INDEX_SCAN:
-#ifdef HA_EXTRA_HAS_HA_EXTRA_USE_CMP_REF
-    case HA_EXTRA_USE_CMP_REF:
-#endif
       DBUG_PRINT("info",("spider HA_EXTRA_STARTING_ORDERED_INDEX_SCAN"));
       if (table_share->primary_key != MAX_KEY)
       {