server: remove unneeded waitress wrapper

server/host-waitress

@@ -1,25 +0,0 @@
-#!/usr/bin/env python3
-
-'''
-Script facade for direct execution with waitress WSGI server.
-Note that szurubooru can be also run using ``python -m szurubooru``, when in
-the repository's root directory.
-'''
-
-import argparse
-import os.path
-import sys
-import waitress
-from szurubooru.facade import app
-
-def main():
-    parser = argparse.ArgumentParser('Starts szurubooru using waitress.')
-    parser.add_argument(
-        '-p', '--port', type=int, help='port to listen on', default=6666)
-    parser.add_argument('--host', help='IP to listen on', default='0.0.0.0')
-    args = parser.parse_args()
-
-    waitress.serve(app, host=args.host, port=args.port)
-
-if __name__ == '__main__':
-    main()