Clean up unused variable
Clean up unused variable

Summary: Remove unused variables reported by compiler.

Reviewed By: yfeldblum

Differential Revision: D17129220

fbshipit-source-id: 7492e64a95201b84beb2247807d33e88a5fd10e1

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift