libsaria: Remove Source() class

Nothing uses it anymore, so it can be removed.

libsaria/sources/__init__.py

@@ -9,30 +9,8 @@ import library
 import playlist
 import queue
 
-cur_source = None
 cur_id = None
 
-class Source:
-	def __init__(self):
-		self.get_attrs  = None
-		self.set_attr   = None
-		self.get_cur_id = None
-		self.save       = None
-
-	def set_current(self):
-		global cur_source
-		cur_source = self
-
-	def load_file(self, path):
-		global cur_source
-		# I should probably get a lock here...
-		try:
-			self.set_current()
-			controls.load(path)
-			return True
-		except:
-			return  False
-
 def inc_count():
 	# This will eventually increment a play count...
 	pass