[misc] remove is_cuda_available (#5319)

python/sglang/srt/models/minicpm3.py

@@ -40,9 +40,9 @@ from sglang.srt.layers.vocab_parallel_embedding import (
 from sglang.srt.managers.schedule_batch import global_server_args_dict
 from sglang.srt.model_executor.forward_batch_info import ForwardBatch
 from sglang.srt.model_loader.weight_utils import default_weight_loader
-from sglang.srt.utils import add_prefix, is_cuda_available
+from sglang.srt.utils import add_prefix, is_cuda
 
-if is_cuda_available():
+if is_cuda():
     from sgl_kernel import bmm_fp8