Fix sgl-kernel benchmark dead code (#11022)

sgl-kernel/benchmark/bench_moe_ep_post_reorder.py

@@ -1,9 +1,22 @@
+import os
+
 import torch
+
+# CI environment detection
+IS_CI = (
+    os.getenv("CI", "false").lower() == "true"
+    or os.getenv("GITHUB_ACTIONS", "false").lower() == "true"
+)
 import triton
 
 from sglang.srt.layers.moe.ep_moe.kernels import post_reorder_triton_kernel
 
-batch_sizes = [64, 128, 256, 512, 640, 768, 1024, 2048, 4096]
+# CI environment uses simplified parameters
+if IS_CI:
+    batch_sizes = [64, 128]  # Only test 2 values in CI
+else:
+    batch_sizes = [64, 128, 256, 512, 640, 768, 1024, 2048, 4096]
+
 configs = [(bs,) for bs in batch_sizes]