Remove untested FCGI example

Closes #1017
Closes #1018

MANIFEST.in

@@ -1,3 +1,3 @@
 include COPYING DOCUMENTATION.md NEWS.md README.md
 include config rights
-include radicale.py radicale.fcgi radicale.wsgi
+include radicale.py radicale.wsgi

radicale.fcgi

@@ -1,17 +0,0 @@
-#!/usr/bin/env python3
-
-"""
-Radicale FastCGI Example.
-
-Launch a Radicale FastCGI server according to configuration.
-
-This script relies on flup but can be easily adapted to use another
-WSGI-to-FastCGI mapper.
-
-"""
-
-from flup.server.fcgi import WSGIServer
-from radicale import application
-
-if __name__ == "__main__":
-    WSGIServer(application).run()