Revert "speedup parsing using map and adjusting poolsize"
Revert "speedup parsing using map and adjusting poolsize"

This reverts commit 8e048379cc298123a7ff19c60f582abde6bdbd07.

funginstitute/patentprocessor,funginstitute/patentprocessor,nikken1/patentprocessor,nikken1/patentprocessor,nikken1/patentprocessor,yngcan/patentprocessor,yngcan/patentprocessor,funginstitute/patentprocessor,yngcan/patentprocessor