Fix regression from #246 (#332)

Author: gshtras

vllm/attention/ops/triton_flash_attention.py

@@ -394,7 +394,6 @@ def get_autotune_configs():
 @triton.autotune(
     configs=autotune_configs,
     key=autotune_keys,
-    use_cuda_graph=True,
 )
 @triton.jit
 def attn_fwd(