Revert "Merge pull request #521 from bretello/main"

This reverts commit 07f0f3a, reversing
changes made to d8a3ddb.

Author: abetlen

llama_cpp/llama_cpp.py

@@ -423,10 +423,7 @@ def llama_backend_free():
 def llama_load_model_from_file(
     path_model: bytes, params: llama_context_params
 ) -> llama_model_p:
-    result = _lib.llama_load_model_from_file(path_model, params)
-    if result is None:
-        raise Exception(f"Failed to load model from {path_model}")
-    return result
+    return _lib.llama_load_model_from_file(path_model, params)
 
 
 _lib.llama_load_model_from_file.argtypes = [c_char_p, llama_context_params]