Update mdr_pdf_parser.py

mdr_pdf_parser.py

@@ -1936,7 +1936,6 @@ class MDROcrEngine:
                 # much lower thresholds so we actually get some candidate masks:
                 det_db_thresh=0.15,
                 det_db_box_thresh=0.15,
-                unclip_ratio=2.0,
                 drop_score=0.01,
                 use_angle_cls=False,
             )