[pulseaudio-discuss] Simplify list free functions

[Maarten Bosmans]

These two patches convert pa_queue and pa_dynarray to use simple free functions,
with only a function pointer argument that frees the list elements, dropping the
userdata argument.  pa_asyncq and pa_flist already use this style of free function,
patches for pa_hashmap and pa_idxset will follow later.

[PATCH 1/2] Use simple free function in pa_dynarray_free
[PATCH 2/2] Use simple free function in pa_queue_free

Maarten