CLEANUP: pollers: remove dead code in the polling loop

As reported by Ilya and Coverity in issue #1858, since recent commit
eea152ee6 ("BUG/MINOR: signals/poller: ensure wakeup from signals")
which removed the test for the global signal flag from the pollers'
loop, the remaining "wake" flag doesn't need to be tested since it
already participates to zeroing the wait_time and will be caught
on the previous line.

Let's just remove that test now.
3 files changed