Revert "Integration of deezloader provider by ParadoxalManiak under CC BY-NC-SA 4.0"

This reverts commit 04e8767ea9.

headphones/classes.py

@@ -21,7 +21,6 @@
 import urllib
 
 from common import USER_AGENT
-from collections import OrderedDict
 
 
 class HeadphonesURLopener(urllib.FancyURLopener):
@@ -136,33 +135,3 @@ class Proper:
     def __str__(self):
         return str(self.date) + " " + self.name + " " + str(self.season) + "x" + str(
             self.episode) + " of " + str(self.tvdbid)
-
-
-class OptionalImport(object):
-    '''
-    Dummy class for optional import (imports needed for optional features).
-    '''
-    def __init__(self, name):
-        self.__name = name
-
-    def __getattr__(self, attr):
-        raise ImportError('The following package is required to use this feature: {0}'.format(self.__name))
-
-
-class CacheDict(OrderedDict):
-    '''
-    Ordered dictionary with fixed size, designed for caching.
-    '''
-    def __init__(self, *args, **kwds):
-        self.size_limit = kwds.pop("size_limit", None)
-        OrderedDict.__init__(self, *args, **kwds)
-        self._check_size_limit()
-
-    def __setitem__(self, key, value):
-        OrderedDict.__setitem__(self, key, value)
-        self._check_size_limit()
-
-    def _check_size_limit(self):
-        if self.size_limit is not None:
-            while len(self) > self.size_limit:
-                self.popitem(last=False)