Don't set audio listener pose automatically;

It isn't always correct once you add locomotion to a project, and
it actually becomes harmful because the pose ping-pongs between
the default pose and the user pose, causing distortion.

src/resources/boot.lua

@@ -200,9 +200,6 @@ function lovr.run()
     if lovr.headset then
       lovr.headset.update(dt)
     end
-    if lovr.audio and lovr.headset then
-      lovr.audio.setPose(lovr.headset.getPose())
-    end
     if lovr.update then lovr.update(dt) end
     if lovr.graphics then
       lovr.graphics.origin()