[test] do not run the dead code analysis as part of the tests
[test] do not run the dead code analysis as part of the tests

Summary:
The dead code checker slows down the test suite notably, and can be annoying
when you're in the middle of a change.

Depends on D7443825

Reviewed By: mbouaziz, ngorogiannis

Differential Revision: D7443881

fbshipit-source-id: 746cf6e

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