Remove status code from request size metric (#54)
Remove status code from request size metric (#54)

When we receive a request to track RequestRead we don't yet know
what the response code is. Only until ResponseStarted or ResponseDone
do we know. As we don't know, this results in a panic as prometheus
is expecting 6 labels but only receives 5.
mwitkow/go-httpwares,mwitkow/go-httpwares