trivial: Drop empty services folder under patrole_tempest_plugin

This patchset drops the empty services folder under
patrole_tempest_plugin. While it is part of the cookie cutter
Tempest plugin setup, it is currently empty and serves no
purpose in Patrole. If in the future we decide to add service
clients there, we can reintroduce the folder. But there is
no purpose in keeping around an empty folder -- it just
increases clutter.

Change-Id: Ibf83a73f5dc2c38d737359221e9974a6562846a6
diff --git a/patrole_tempest_plugin/services/__init__.py b/patrole_tempest_plugin/services/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/patrole_tempest_plugin/services/__init__.py
+++ /dev/null