Revert "Create a new RocksDB batch every 32k records."
Revert "Create a new RocksDB batch every 32k records."

This reverts commit acc58e0c03bc7b24ff6284a88f5d3b261541430c.

nla/outbackcdx,nla/tinycdxserver,nla/outbackcdx,nla/tinycdxserver,nla/outbackcdx,nla/tinycdxserver,nla/outbackcdx,nla/tinycdxserver