Remove unused variable in sufsort_inl.h to silence gcc warnings
Remove unused variable in sufsort_inl.h to silence gcc warnings

Change-Id: Ib2df926c3b16047b9602b06232414c8e8467312b

[git-p4: depot-paths = "//sw/gpgpu/nvbio/main/": change = 18472268]

NVlabs/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,kimrutherford/nvbio,NVlabs/nvbio,NVlabs/nvbio,NVlabs/nvbio,kimrutherford/nvbio