[scheduler] Remove EQT perftest.

EQT calculation was removed and this perftest is a dead code now.

R=shaseley@chromium.org

Change-Id: I243c0785f2befea9eee399f1264270b7628071d3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2542162
Auto-Submit: Alexander Timin <altimin@chromium.org>
Reviewed-by: Scott Haseley <shaseley@chromium.org>
Commit-Queue: Scott Haseley <shaseley@chromium.org>
Cr-Commit-Position: refs/heads/master@{#842159}

third_party/blink/renderer/platform/scheduler/test/queueing_time_estimator_perf_test.cc

-// Copyright 2018 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.
-
-#include "base/timer/lap_timer.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "testing/perf/perf_test.h"
-#include "third_party/blink/renderer/platform/scheduler/test/test_queueing_time_estimator_client.h"
-
-namespace blink {
-namespace scheduler {
-
-namespace {
-
-static constexpr base::TimeDelta kTimeLimit =
-    base::TimeDelta::FromMilliseconds(2000);
-static const int kWarmupRuns = 50;
-static const int kCheckInterval = 100;
-
-class QueueingTimeEstimatorTestPerfTest : public testing::Test {
- public:
-  QueueingTimeEstimatorTestPerfTest()
-      : timer_(kWarmupRuns, kTimeLimit, kCheckInterval) {}
-  base::LapTimer timer_;
-  base::TimeTicks time;
-  TestQueueingTimeEstimatorClient client;
-};
-
-}  // namespace
-
-TEST_F(QueueingTimeEstimatorTestPerfTest, DISABLED_ManyTasks) {
-  const int num_tests = 3;
-  base::TimeDelta task_lengths[num_tests] = {
-      base::TimeDelta::FromSeconds(1), base::TimeDelta::FromMilliseconds(50),
-      base::TimeDelta::FromMilliseconds(1)};
-  std::string test_descriptions[num_tests] = {"OneSecondTasks", "FiftyMsTasks",
-                                              "OneMsTasks"};
-  for (int i = 0; i < num_tests; ++i) {
-    QueueingTimeEstimatorForTest estimator(
-        &client, base::TimeDelta::FromSeconds(1), 20, time);
-    time += base::TimeDelta::FromSeconds(1);
-    timer_.Reset();
-    do {
-      estimator.OnExecutionStarted(time);
-      time += task_lengths[i];
-      estimator.OnExecutionStopped(time);
-      timer_.NextLap();
-    } while (!timer_.HasTimeLimitExpired());
-    perf_test::PrintResult("QueueingTimeEstimatorTestPerfTest", "ManyTasks",
-                           test_descriptions[i], timer_.LapsPerSecond(),
-                           "tasks/s", true);
-  }
-}
-
-}  // namespace scheduler
-}  // namespace blink