MDEV-19472: eq_range_index_dive_limit cannot be configured in server.cnf

Fixed, now server can be configured with eq_range_index_dive_limit set in cnf file

sql/mysqld.cc

@@ -7734,7 +7734,6 @@ struct my_option my_long_options[]=
   MYSQL_TO_BE_IMPLEMENTED_OPTION("optimizer-trace-offset"),       // OPTIMIZER_TRACE
   MYSQL_TO_BE_IMPLEMENTED_OPTION("optimizer-trace-limit"),        // OPTIMIZER_TRACE
   MYSQL_TO_BE_IMPLEMENTED_OPTION("optimizer-trace-max-mem-size"), // OPTIMIZER_TRACE
-  MYSQL_TO_BE_IMPLEMENTED_OPTION("eq-range-index-dive-limit"),
   MYSQL_COMPATIBILITY_OPTION("server-id-bits"),
   MYSQL_TO_BE_IMPLEMENTED_OPTION("slave-rows-search-algorithms"), // HAVE_REPLICATION
   MYSQL_TO_BE_IMPLEMENTED_OPTION("slave-allow-batching"),         // HAVE_REPLICATION