Remove /usr/lib/pulp/plugins/types/deb.json from setup.py

This legacy file will prevent migration 0004 from working.

WARNING: This will also require removing the file from the .spec file in
pulp-packaging repository!

fixes #4951
https://pulp.plan.io/issues/4951

plugins/setup.py

@@ -28,7 +28,6 @@
     include_package_data=True,
     data_files=[
         ('/etc/httpd/conf.d', ['etc/httpd/conf.d/pulp_deb.conf']),
-        ('/usr/lib/pulp/plugins/types', ['types/deb.json']),
     ],
     install_requires=[
         'python-gnupg',

plugins/test/unit/plugins/importers/test_importer.py

@@ -2,7 +2,6 @@
 Contains tests for pulp_deb.plugins.importers.importer.
 """
 from gettext import gettext as _
-import json
 import os
 
 import mock
@@ -33,16 +32,6 @@ def test_return_value(self):
 
 
 class ModelMixIn(object):
-    def test_unit_keys(self):
-        type_file = os.path.join(os.path.dirname(__file__),
-                                 '..', '..', '..', '..',
-                                 'types', 'deb.json')
-        contents = json.load(open(type_file))
-        types = dict((x['id'], x) for x in contents['types'])
-        tlist = types[self.__class__.Model.TYPE_ID]['unit_key']
-        self.assertEquals(
-            sorted(self.__class__.Model.unit_key_fields),
-            sorted(tlist))
 
     def test_ids(self):
         self.assertEquals(self.UNIT_KEY_FIELDS,