Deduplicate ipex initialization code

library/model_util.py

@@ -5,15 +5,9 @@ import math
 import os
 import torch
 
-try:
-    import intel_extension_for_pytorch as ipex
+from library.ipex_interop import init_ipex
 
-    if torch.xpu.is_available():
-        from library.ipex import ipex_init
-
-        ipex_init()
-except Exception:
-    pass
+init_ipex()
 import diffusers
 from transformers import CLIPTextModel, CLIPTokenizer, CLIPTextConfig, logging
 from diffusers import AutoencoderKL, DDIMScheduler, StableDiffusionPipeline  # , UNet2DConditionModel