libsaria: Remove old threads.py module

Everything in here can easily be duplicated with one line of python
code.  Keeping this file does a good job at increasing complexity.

libsaria/path/lastfm.py

@@ -5,9 +5,9 @@ from libsaria import sources
 from libsaria import web
 from libsaria import xm
 from libsaria import callbacks
-from libsaria import threads
 from libsaria import storage
 from libsaria.storage import cache
+import threading
 
 file_id   = libsaria.path.file_id
 pref_attr = xm.find_preferred_attribute
@@ -74,7 +74,7 @@ def get_album_art(file):
 	callbacks.get_art(file, id)
 
 def get_artwork(file):
-	threads.background(get_album_art, file)
+	threading.Thread(target=get_album_art, args=(file,)).start()
 
 def set_artwork(artist, album, img_path):
 	cache.copy_in_file(artist, album, "Folder.jpg", img_path)

libsaria/threads.py

@@ -1,41 +0,0 @@
-# Bryan Schumaker (8/19/2010)
-
-import threading
-Thread     = threading.Thread
-Mutex      = threading.Lock
-
-
-mutex_mutex = Mutex()
-mutexes     = dict()
-
-
-class BG_Thread(Thread):
-	def __init__(self, func, *args):
-		Thread.__init__(self)
-		self.func = func
-		self.args = args
-	def run(self):
-		self.func(*self.args)
-
-
-def background(func, *args):
-	try:
-		th = BG_Thread(func, *args)
-		th.start()
-		return th
-	except Exception,e:
-		print e
-		return None
-
-
-def get_mutex(lock_name):
-	global mutexes
-	global Mutex
-	global mutex_mutex
-	mutex_mutex.acquire()
-	lock = mutexes.get(lock_name, None)
-	if lock == None:
-		lock = Mutex()
-		mutexes[lock_name] = lock
-	mutex_mutex.release()
-	return lock