- Clean out pidfile

- Remove confusing `include_package_data`

discover_overlay/discover_overlay.py

@@ -21,7 +21,6 @@ import logging
 import pkg_resources
 import json
 import gi
-import pidfile
 from configparser import ConfigParser
 
 from .settings_window import MainSettingsWindow

setup.py

@@ -15,7 +15,6 @@ setup(
     long_description_content_type='text/markdown',
     url='https://github.com/trigg/Discover',
     packages=find_packages(),
-    include_package_data=True,
     data_files=[
         ('share/applications', [
             'discover_overlay.desktop', 'discover_overlay_configure.desktop'
@@ -30,7 +29,6 @@ setup(
         'websocket-client',
         'pyxdg',
         'requests',
-        'python-pidfile>=3.0.0',
         'pillow',
         'python-xlib'
     ],