[Bugfix] clean up duplicated code (#16485)

Signed-off-by: Gogs <gogs@fake.local>
Co-authored-by: Gogs <gogs@fake.local>

vllm/model_executor/models/opt.py

@@ -324,7 +324,6 @@ class OPTForCausalLM(nn.Module, SupportsPP):
         super().__init__()
         config = vllm_config.model_config.hf_config
         quant_config = vllm_config.quant_config
-        super().__init__()
         self.config = config
         self.quant_config = quant_config
         self.model = OPTModel(vllm_config=vllm_config,