reintroduce deadline removal (#48481)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/48481
we removed deadlines thinking that was the cause for the timeout of
the int8 test, but turns out that the int8 tests were failing because of a
legitimate bug and this was masked as a timeout
Now that the bug has been fixed, the tests are failing because it takes more
than 10s to run the test, this is an option we used to override
https://www.internalfb.com/intern/testinfra/diagnostics/2533274833752501.562949971168104.1606367728/
Test Plan: reran the test manually
Reviewed By: venkatacrc
Differential Revision: D25184573
fbshipit-source-id: 0b1b2eaa690472e80b9b0991618da8d792aeb42b
