This reverts commit d731333339084c7518e6c167b6120779a8cca027.

The file is generated at build time. It was kept around for
Rebar compatibility. Since then we have been publishing
releases to Hex so Rebar arguably doesn't need to fetch
the project from Git.

ranch:procs/2 examples were not correctly called (missing
first argument reference).

The protocol callback module has timeout value set as 60 seconds