Revert "MINOR: queue: factor out the proxy/server queuing code"

This reverts commit 3eecdb65c5a6b933399ebb0ac4ef86a7b97cf85d.

The recent changes since 5304669e1 MEDIUM: queue: make
pendconn_process_next_strm() only return the pendconn opened a tiny race
condition between stream_free() and process_srv_queue(), as the pendconn
is accessed outside of the lock, possibly while it's being freed. A
different approach is required.
1 file changed