Revert "Fix assert failure in buffer and deadlock while triggering read event in iomanager_epoll"
Revert "Fix assert failure in buffer and deadlock while triggering read event in iomanager_epoll"

This reverts commit 79c2274c26c79324e481ec2bf4ab00fb63f2f935.

adfin/mordor,mtanski/mordor,ccutrer/mordor,adfin/mordor,ccutrer/mordor,mtanski/mordor,mtanski/mordor,ccutrer/mordor,adfin/mordor