Fix triton_kernels import error on some hardwares (#11831)

python/sglang/srt/layers/quantization/unquant.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-import importlib.util
 from typing import TYPE_CHECKING, List, Optional
 
 import torch
@@ -31,8 +30,6 @@ if TYPE_CHECKING:
         StandardDispatchOutput,
     )
 
-has_triton_kernels = importlib.util.find_spec("triton_kernels") is not None
-
 
 _is_cpu_amx_available = cpu_has_amx_support()
 _is_hip = is_hip()
@@ -143,7 +140,7 @@ class UnquantizedFusedMoEMethod(FusedMoEMethodBase, CustomOp):
 
         self.triton_kernel_moe_forward = None
         self.triton_kernel_moe_with_bias_forward = None
-        if torch.cuda.is_available() and has_triton_kernels:
+        if torch.cuda.is_available() and use_triton_kernels:
             from sglang.srt.layers.moe.fused_moe_triton.triton_kernels_moe import (
                 triton_kernel_moe_forward as _tk_forward,
             )