Removed django.db.models.loading per deprecation timeline.

django/db/models/loading.py

-import warnings
-
-from django.apps import apps
-from django.utils.deprecation import RemovedInDjango19Warning
-
-
-warnings.warn(
-    "The utilities in django.db.models.loading are deprecated "
-    "in favor of the new application loading system.",
-    RemovedInDjango19Warning, stacklevel=2)
-
-__all__ = ('get_apps', 'get_app', 'get_models', 'get_model', 'register_models',
-        'load_app', 'app_cache_ready')
-
-# Backwards-compatibility for private APIs during the deprecation period.
-UnavailableApp = LookupError
-cache = apps
-
-# These methods were always module level, so are kept that way for backwards
-# compatibility.
-get_apps = apps.get_apps
-get_app_package = apps.get_app_package
-get_app_path = apps.get_app_path
-get_app_paths = apps.get_app_paths
-get_app = apps.get_app
-get_models = apps.get_models
-get_model = apps.get_model
-register_models = apps.register_models
-load_app = apps.load_app
-app_cache_ready = apps.app_cache_ready
-
-
-# This method doesn't return anything interesting in Django 1.6. Maintain it
-# just for backwards compatibility until this module is deprecated.
-def get_app_errors():
-    try:
-        return apps.app_errors
-    except AttributeError:
-        apps.app_errors = {}
-        return apps.app_errors