Remove Rietveld-only apply_issue

This script only works (worked) for Rietveld issues, which
effectively no longer exist. It serves no purpose anymore.

Bug: 770408
Change-Id: Ic93ab3ce90d9c35b3bf5189e2beb4aa0c3983d44
Reviewed-on: https://chromium-review.googlesource.com/1070859Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Commit-Queue: Aaron Gable <agable@chromium.org>

.gitattributes

@@ -13,7 +13,6 @@
 /gsutil.vpython recipes
 
 # Extensionless tools we want and support scripts.
-/apply_issue                  recipes
 /clang*                       recipes
 /depot-tools-auth             recipes
 /download_from_google_storage recipes

apply_issue

-#!/usr/bin/env bash
-# Copyright (c) 2012 The 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.
-
-base_dir=$(dirname "$0")
-
-PYTHONDONTWRITEBYTECODE=1 exec python "$base_dir/apply_issue.py" "$@"

apply_issue.bat

-@echo off
-:: Copyright (c) 2012 The 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.
-setlocal
-
-:: Ensure that "depot_tools" is somewhere in PATH so this tool can be used
-:: standalone, but allow other PATH manipulations to take priority.
-set PATH=%PATH%;%~dp0
-
-:: Defer control.
-python "%~dp0\apply_issue.py" %*