Renamed Glance test file

The file name previously started with "test_test_..", it is being
renamed to "test_..".

Change-Id: Ie52c32e9cf589be92ab49597b1719f8947383e7a
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_test_image_namespace_resource_type.py b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_resource_type.py
similarity index 100%
rename from patrole_tempest_plugin/tests/api/image/v2/test_test_image_namespace_resource_type.py
rename to patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_resource_type.py