[KERNELS] fixup leftover experiment code (#7599)

Author: ptillet

python/triton_kernels/triton_kernels/matmul_ogs_details/_common.py

@@ -84,7 +84,7 @@ def convert_dtype(dtype):
         # suffix = "" if not mode else "_o" + (''.join(mode))
         # if base_name.startswith("_p"):
         #     suffix += "_ptma"
-        return f"cutlass_{base_name}_{layouts}_{dtypes}_{blocks}"
+        return f"{base_name}_{layouts}_{dtypes}_{blocks}"
 
     return matmul_repr