Remove Gemma dtype override

modeling_slip.py

@@ -433,9 +433,6 @@ class Gemma3MultimodalModel(nn.Module):
                 model_id, trust_remote_code=True)
         else:
             config = AutoConfig.from_pretrained(model_id, trust_remote_code=True)
-            # Override Gemma's default bfloat16 so all params init in float32;
-            # users control runtime dtype via AutoModel.from_pretrained(torch_dtype=...)
-            config.torch_dtype = torch.float32
             self.model = AutoModelForCausalLM.from_config(
                 config, trust_remote_code=True)