remove unused variable val_loop_called

Author: tkng

pytorch_lightning/trainer/training_loop.py

@@ -467,7 +467,6 @@ def run_training_epoch(self):
 
         train_dataloader = self.trainer.data_connector.get_profiled_train_dataloader(train_dataloader)
         dataloader_idx = 0
-        val_loop_called = False
 
         for batch_idx, (batch, is_last_batch) in train_dataloader:
 
@@ -507,7 +506,6 @@ def run_training_epoch(self):
                 self.trainer.validating = True
                 self.trainer.run_evaluation()
                 self.trainer.training = True
-                val_loop_called = True
 
             # -----------------------------------------
             # SAVE LOGGERS (ie: Tensorboard, etc...)