buildkit: Remove cmds and add_cms_path.sh

buildkit shouldn't normally be invoked by the end-user, so this
convenience is unnecessary. Users who really need to use the CLI can
just use "python3 -m buildkit" or something to that effect.

add_cmds_path.sh

@@ -1,5 +0,0 @@
-#!/bin/sh
-
-# Set PATH variable to cmds/ directory on UNIX shell-compatible systems
-# Run this script with "source" in order for the PATH variable to take effect
-export PATH=$(dirname $(readlink -f $0))/cmds:$PATH

cmds/buildkit

@@ -1,21 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: UTF-8 -*-
-
-# Copyright (c) 2017 The ungoogled-chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-"""
-Simple buildkit CLI launcher allowing invocation from anywhere.
-
-Pass in -h or --help for usage information.
-"""
-
-import sys
-import pathlib
-
-sys.path.insert(0, str(pathlib.Path(__file__).resolve().parent.parent))
-import buildkit.cli
-sys.path.pop(0)
-
-buildkit.cli.main()