clean up RecordsCofing.cc, remove unused entries

diff --cc mgmt/RecordsConfig.cc
index 63095c9,63095c9..2e113b6
@@@ -955,26 -955,26 +955,12 @@@ RecordElement RecordsConfig[] = 
    ,
    //  # The maximum size of a document that will be stored in the cache.
    //  # (0 disables the maximum document size check)
--  {RECT_CONFIG, "proxy.config.net.enable_ink_disk_io", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
--  {RECT_CONFIG, "proxy.config.net.ink_disk_io_watermark", RECD_INT, "400", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
--  {RECT_CONFIG, "proxy.config.net.ink_aio_write_threads", RECD_INT, "10", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
--  {RECT_CONFIG, "proxy.config.net.max_kqueue_len", RECD_INT, "0", RECU_RESTART_TS, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
    {RECT_CONFIG, "proxy.config.cache.max_doc_size", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_STR, "^[0-9]+$", RECA_NULL}
    ,
    {RECT_CONFIG, "proxy.config.cache.min_average_object_size", RECD_INT, "8000", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
    ,
--  {RECT_CONFIG, "proxy.config.cache.max_agg_delay", RECD_INT, "1000", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
    {RECT_CONFIG, "proxy.config.cache.threads_per_disk", RECD_INT, "8", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
    ,
--  {RECT_CONFIG, "proxy.config.cache.aio_sleep_time", RECD_INT, "100", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
--  {RECT_CONFIG, "proxy.config.cache.check_disk_idle", RECD_INT, "1", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
--  ,
    {RECT_CONFIG, "proxy.config.cache.agg_write_backlog", RECD_INT, "5242880", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}
    ,
    {RECT_CONFIG, "proxy.config.cache.enable_checksum", RECD_INT, "0", RECU_DYNAMIC, RR_NULL, RECC_NULL, NULL, RECA_NULL}