Remove run_gtest_angle_test script.

Shouldn't be used after crrev.com/c/3399045 and crrev.com/c/3035587

Bug: angleproject:5417
Change-Id: Iadf629d94a561a99ebfe2539dbabda5e17db5be6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3929144
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>

gni/angle.gni

@@ -501,7 +501,6 @@ if (angle_standalone || build_with_chromium) {
                     ]
 
       data = invoker.data + [
-               "$angle_root/scripts/run_gtest_angle_test.py",
                "$angle_root/src/tests/py_utils/android_helper.py",
                "$angle_root/src/tests/py_utils/angle_path_util.py",
                "$angle_root/src/tests/py_utils/angle_test_util.py",

scripts/run_gtest_angle_test.py

@@ -1,110 +0,0 @@
-#!/usr/bin/env vpython3
-# Copyright 2020 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.
-"""Runs an isolated non-Telemetry ANGLE test.
-
-The main contract is that the caller passes the arguments:
-
-  --isolated-script-test-output=[FILENAME]
-json is written to that file in the format:
-https://chromium.googlesource.com/chromium/src/+/main/docs/testing/json_test_results_format.md
-
-Optional argument:
-
-  --isolated-script-test-filter=[TEST_NAMES]
-
-is a double-colon-separated ("::") list of test names, to run just that subset
-of tests. This list is parsed by this harness and sent down via the
---gtest_filter argument.
-
-This script is intended to be the base command invoked by the isolate,
-followed by a subsequent non-python executable. For a similar script see
-run_performance_test.py.
-"""
-
-import argparse
-import json
-import os
-import pathlib
-import shutil
-import sys
-import tempfile
-import traceback
-
-
-PY_UTILS = str(pathlib.Path(__file__).resolve().parents[1] / 'src' / 'tests' / 'py_utils')
-if PY_UTILS not in sys.path:
-    os.stat(PY_UTILS) and sys.path.insert(0, PY_UTILS)
-import angle_path_util
-import angle_test_util
-
-angle_path_util.AddDepsDirToPath('testing/scripts')
-import common
-import xvfb
-import test_env
-
-# Unfortunately we need to copy these variables from
-# //src/testing/scripts/test_env.py. Importing it and using its
-# get_sandbox_env breaks test runs on Linux (it seems to unset DISPLAY).
-CHROME_SANDBOX_ENV = 'CHROME_DEVEL_SANDBOX'
-CHROME_SANDBOX_PATH = '/opt/chromium/chrome_sandbox'
-
-
-def main():
-    parser = argparse.ArgumentParser()
-    parser.add_argument('executable', help='Test executable.')
-    parser.add_argument('--isolated-script-test-output', type=str)
-    parser.add_argument('--isolated-script-test-filter', type=str)
-    parser.add_argument('--xvfb', help='Start xvfb.', action='store_true')
-
-    # Kept for compatiblity.
-    # TODO(jmadill): Remove when removed from the recipes. http://crbug.com/954415
-    parser.add_argument('--isolated-script-test-perf-output', type=str)
-
-    args, extra_flags = parser.parse_known_args()
-
-    env = os.environ.copy()
-
-    if angle_test_util.HasGtestShardsAndIndex(env):
-        extra_flags += ('--shard-count=%d --shard-index=%d' %
-                        angle_test_util.PopGtestShardsAndIndex(env)).split()
-
-    if 'ISOLATED_OUTDIR' in env:
-        extra_flags += ['--isolated-outdir=' + env['ISOLATED_OUTDIR']]
-        env.pop('ISOLATED_OUTDIR')
-
-    # Assume we want to set up the sandbox environment variables all the
-    # time; doing so is harmless on non-Linux platforms and is needed
-    # all the time on Linux.
-    env[CHROME_SANDBOX_ENV] = CHROME_SANDBOX_PATH
-
-    rc = 0
-    try:
-        # Consider adding stdio control flags.
-        if args.isolated_script_test_output:
-            extra_flags.append('--isolated-script-test-output=%s' %
-                               args.isolated_script_test_output)
-
-        if args.isolated_script_test_filter:
-            filter_list = common.extract_filter_list(args.isolated_script_test_filter)
-            extra_flags.append('--gtest_filter=' + ':'.join(filter_list))
-
-        with common.temporary_file() as tempfile_path:
-            env['CHROME_HEADLESS'] = '1'
-            cmd = [angle_test_util.ExecutablePathInCurrentDir(args.executable)] + extra_flags
-
-            if args.xvfb:
-                rc = xvfb.run_executable(cmd, env, stdoutfile=tempfile_path)
-            else:
-                rc = test_env.run_command_with_output(cmd, env=env, stdoutfile=tempfile_path)
-
-    except Exception:
-        traceback.print_exc()
-        rc = 1
-
-    return rc
-
-
-if __name__ == '__main__':
-    sys.exit(main())