[examples/dreambooth] don't pass tensor_format to scheduler. (#649)

don't pass tensor_format

examples/dreambooth/train_dreambooth.py

@@ -434,7 +434,7 @@ def main():
     )
 
     noise_scheduler = DDPMScheduler(
-        beta_start=0.00085, beta_end=0.012, beta_schedule="scaled_linear", num_train_timesteps=1000, tensor_format="pt"
+        beta_start=0.00085, beta_end=0.012, beta_schedule="scaled_linear", num_train_timesteps=1000
     )
 
     train_dataset = DreamBoothDataset(