Revert [lit] Synthesize artificial deadline

Python on Windows raises this OverflowError:
      gotit = waiter.acquire(True, timeout)
  OverflowError: timestamp too large to convert to C _PyTime_t

So it seems this API behave the same way on every OS.

Also reverts the dependent commit a660dc590a5e8dafa1ba6ed56447ede151d17bd9.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375143 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed