remove dead code in silu_and_mul kernel - creates output offsets (for 1D), expect n_elements param... but no need...

[lessw2020]

remove dead code:

out_offsets = bid * hidden_size + offsets

computes this but never used since kernel is 2D.
Similarly, the input param:
n_elements
is never used so doesn't need to be in the signature.

Left over from 1D original work?

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[hannahli-nv]

Thank you for pointing out this issue. These codes are indeed dead code. Before we can merge this PR, there are a few remaining items:

• To ensure the tests run properly, please remove the remaining usages of n_elements in this PR: code 1 and code 2.

• As this is your first contribution to TileGym, please submit your signed CLA document as outlined in CONTRIBUTING.md.

Completing these steps will help us proceed with merging the PR.

Since TileGym's CI is not yet available, we will conduct manual testing to verify the code.

Thank you.

[lessw2020]

Thanks @hannahli-nv
Let me remove the param from the calling code.

[lessw2020]

Hi @hannahli-nv
Thanks for the review. Pulled the remaining references, and ran the benchmark to verify all working nicely.

[hannahli-nv]

We have completed manual testing for this PR, and all tests passed.
I will merge the PR. Thank you @lessw2020 for your contribution.