vllm-ascend won't contain model file anymore. Now pangu model file has
been moved to torchair module. The origin one can be removed.
Note: After this PR, pangu only works with torchair mode then.
- vLLM version: v0.10.1.1
- vLLM main:
8c892b1831
Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>