HPCC-10822 Excessive tracing from epoll code

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
Merge pull request #5377 from richardkchapman/epoll-tracing

HPCC-10822 Excessive tracing from epoll code

Reviewed-By: Mark Kelly <mark.kelly@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>