[sledge] Minor cleanup of timers in Context
[sledge] Minor cleanup of timers in Context

Summary: No functional change.

Reviewed By: bennostein

Differential Revision: D37743455

fbshipit-source-id: ff8d7d543a20e289ed633b03de581a19a8e7efcc

facebook/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer,facebook/infer