Revert "filter: try to use the Python implementation of FCFGMerge"
Revert "filter: try to use the Python implementation of FCFGMerge"

This reverts commit ebb4150463ef97571d8f4ffc0b8189ff94d5cf1a.

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core