Code review comment for lp:~raof/mir/no-ipc-on-compositor-threads

Thanks for that!

That made it obvious that we were never actually freeing the buffers allocated on a BufferStream when it is destroyed.

I thought that (a) the client side did that, and (b) the server side *also* did that.

But it turns out that stream->associate_buffer() is actually a bunch of entirely unused bookeeping, so... :)