typo fix

Author: YanivDorGalron

examples/controlnet/train_controlnet.py

@@ -1143,7 +1143,7 @@ def load_model_hook(models, input_dir):
             if global_step >= args.max_train_steps:
                 break
 
-    # Create the pipeline using using the trained modules and save it.
+    # Create the pipeline using the trained modules and save it.
     accelerator.wait_for_everyone()
     if accelerator.is_main_process:
         controlnet = unwrap_model(controlnet)