revert  fulltext model update
revert  fulltext model update


Former-commit-id: 05013b6cc4d2532c3e7afa31622d97f58521e9a1
kermitt2/grobid,kermitt2/grobid,kermitt2/grobid,kermitt2/grobid,kermitt2/grobid,kermitt2/grobid