Merge branch 'remove-lr-metric' into 'main'

Remove invalid tensorboard logging for lr scheduler metric

Closes #304

See merge request !451

dan/ocr/manager/training.py

@@ -695,10 +695,6 @@ class GenericTrainingManager:
                                 self.lr_schedulers[model_name].step(
                                     len(batch_metrics["names"])
                                 )
-                                if "lr" in metric_names:
-                                    self.writer.add_scalar(
-                                        "lr/{}".format(model_name),
-                                    )
 
                     # Update dropout scheduler
                     self.dropout_scheduler.step(len(batch_metrics["names"]))