libsaria: Remove unused queue save function

I never actually used this... I may enable saving the queue later, but
it's not important now.

libsaria/sources/queue/__init__.py

@@ -22,10 +22,6 @@ def init():
 	source = libsaria.sources.Source()
 	source.get_attrs  = library.get_attrs
 	source.set_attr   = library.set_attr
-	source.save       = save
-
-def save():
-	pass
 
 def init_bg():
 	init()