In both Velocity and BungeeCord, the most commonly created object is an
object that encapsulates a Minecraft packet and a its associated byte
data.
At first, I considered trying to recycle these objects, but then I
discovered that this object has no reason to exist, and actually somewhat
complicates the implementation. Thus, this commit removes these objects,
making Velocity more more GC-friendly by not allocating frequently-created
objects.
This is still an experimental change, but it's a fairly safe one to make.
abbdf70d5e