pjsip: Removed unused defines

Ignore-this: a8894d39bfd79921c1279b23a939afd9

darcs-hash:20130709152241-56b4d-560d45f8739a6ea06e3dfb73c5205a669916db73
pjsip: Use comprehensive names for ALSA devices

Ignore-this: ca75b136d1a58571549a767a78e55bf9

darcs-hash:20130710145434-56b4d-bcd80029b8e0c0752e0f754e00608f37d32d37b8