Revert "Autotest: Test servo device before using."

This reverts commit 2b1cbc7854bfc5d20bf94b18ecdbf43aabd744b5

Turns out signals+threading don't mix well.

Change-Id: I8ae4b5009d0a79fead9120062947e3d4c77a071a
Reviewed-on: https://gerrit.chromium.org/gerrit/62396
Reviewed-by: Richard Barnette <jrbarnette@chromium.org>
Tested-by: Simran Basi <sbasi@chromium.org>
1 file changed