pylint: drop unversioned program

We want people to use specific pylint-$VER wrappers now to get stable
behavior and make it easier to roll updates.  This one is just a link
to pylint-1.5 which uses Python 2.  Anyone still linting Python 2 code
should be using pylint-1.5 explicitly.

Let's drop this to get it out of $PATH for developers who want pylint
from their host system to "just work".

Change-Id: I14411db7cddd0ecce40a370366c21f496166fe1d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/3780302
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Brian Ryner <bryner@google.com>

pylint

-#!/bin/sh
-# 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.
-
-# pylint -- a shell wrapper for pylint.
-
-base_dir=$(dirname "$0")
-PYTHONDONTWRITEBYTECODE=1 exec "$base_dir/pylint-1.5" "$@"

pylint.bat

-@echo off
-:: Copyright 2019 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.
-vpython "%~dp0\pylint-1.5" %*