Remove extra import

src/evaluation/commit_message_generation/cmg_metrics.py

@@ -3,25 +3,19 @@ from typing import Dict, List
 import evaluate  # type: ignore[import]
 
 from ..base_task_metrics import BaseTaskMetrics
-from .b_norm import BNorm
 
 
 class CMGMetrics(BaseTaskMetrics):
     def __init__(self):
-        self.bnorm = BNorm()
         self.bleu = evaluate.load("sacrebleu")
         self.chrf = evaluate.load("chrf")
         self.rouge = evaluate.load("rouge")
         self.bertscore = evaluate.load("bertscore")
         self.bertscore_normalized = evaluate.load("bertscore")
 
-    def reset(self):
-        self.bnorm.reset()
-
-    def update(
+    def add_batch(
         self, predictions: List[str], references: List[str], *args, **kwargs
     ) -> None:
-        self.bnorm.update(predictions=predictions, references=references)
         self.bleu.add_batch(
             predictions=predictions, references=[[ref] for ref in references]
         )
@@ -41,7 +35,6 @@ class CMGMetrics(BaseTaskMetrics):
             lang="en", rescale_with_baseline=True
         )
         return {
-            "bnorm": self.bnorm.compute(),
             "bleu": self.bleu.compute(tokenize="13a")["score"],
             "chrf": self.chrf.compute()["score"],
             "rouge1": rouge["rouge1"] * 100,