Update pmc_oa.py

pmc_oa.py

@@ -110,9 +110,8 @@ class PMC_OA(datasets.GeneratorBasedBuilder):
     def _generate_examples(self, filepath, image_dir):
         """Yields examples."""
         logger.info("generating examples from = %s", filepath)
-        
-        with open(filepath, encoding="utf-8") as f:
-            reader = jsonlines.open(f)
+
+        with jsonlines.open(filepath) as reader:
             for _id, obj in enumerate(reader):
                 if self.config.name == "pmc_oa_beta":
                     relative_image_path = obj['image']