Remove the data filters feature.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/common/classes.py

@@ -120,50 +120,6 @@ class ErrorLogNamespace(object):
         return ErrorLogEntry.objects.filter(namespace=self.name)
 
 
-@python_2_unicode_compatible
-class Filter(object):
-    _registry = {}
-
-    @classmethod
-    def get(cls, slug):
-        return cls._registry[slug]
-
-    @classmethod
-    def all(cls):
-        return cls._registry
-
-    def __init__(self, label, slug, filter_kwargs, model, object_permission=None, hide_links=False):
-        self.label = label
-        self.slug = slug
-        self.filter_kwargs = filter_kwargs
-        self.model = model
-        self.object_permission = object_permission
-        self.hide_links = hide_links
-
-        self.__class__._registry[self.slug] = self
-
-    def __str__(self):
-        return force_text(self.label)
-
-    def get_queryset(self, user):
-        AccessControlList = apps.get_model(
-            app_label='acls', model_name='AccessControlList'
-        )
-
-        queryset = self.model.objects.all()
-        for kwargs in self.filter_kwargs:
-            queryset = queryset.filter(**kwargs)
-
-        queryset = queryset.distinct()
-
-        if self.object_permission:
-            return AccessControlList.objects.filter_by_access(
-                self.object_permission, user, queryset=queryset
-            )
-        else:
-            return queryset
-
-
 class MissingItem(object):
     _registry = []