Remove `accept_android_sdk_licenses.sh`, which appears unused. (#161388)

Towards https://github.com/flutter/flutter/issues/161387.

From what I can tell, this is no longer referenced or used (I
cross-checked `flutter/recipes` as well).

dev/bots/accept_android_sdk_licenses.sh

diff --git a/dev/bots/accept_android_sdk_licenses.sh b/dev/bots/accept_android_sdk_licenses.sh
deleted file mode 100755
index 92161b8..0000000
--- a/dev/bots/accept_android_sdk_licenses.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2014 The Flutter Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-set -e
-
-# This script is only meant to be run by the Cirrus CI system, not locally.
-# It must be run from the root of the Flutter repo.
-
-function error() {
-  echo "$@" 1>&2
-}
-
-function accept_android_licenses() {
-  yes "y" | flutter doctor --android-licenses
-}
-
-echo "Flutter SDK directory is: $PWD"
-
-# Accept licenses.
-echo "Accepting Android licenses."
-accept_android_licenses || (error "Accepting Android licenses failed." && false)

dev/bots/analyze.dart

diff --git a/dev/bots/analyze.dart b/dev/bots/analyze.dart
index 5f52765..66198a5 100644
--- a/dev/bots/analyze.dart
+++ b/dev/bots/analyze.dart
@@ -2553,7 +2553,6 @@
   'bin/internal/update_dart_sdk.sh',
   'bin/internal/update_engine_version.sh',
 
-  'dev/bots/accept_android_sdk_licenses.sh',
   'dev/bots/codelabs_build_test.sh',
   'dev/bots/docs.sh',