New Year cleaning #1: bye bye Flash.
New Year cleaning #2: out with payments.

No one ever asked for this, no one ever used it.
New Year cleaning #3: out with benchmark.

There's a playn-perf project which does more serious benchmarking and is a fine
place for new benchmarks to go.
New Year cleaning #4: out with server package.

I don't know what was ever intended with this, but there's no code of
significance in there.