Remove deprecated functions from components/task_scheduler_util/.

components/task_scheduler_util/browser/initialization.h

 // Copyright 2016 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.
 
 #ifndef COMPONENTS_TASK_SCHEDULER_UTIL_BROWSER_INITIALIZATION_H_
 #define COMPONENTS_TASK_SCHEDULER_UTIL_BROWSER_INITIALIZATION_H_
 
-#include <stddef.h>
+#include <memory>
 
-#include <memory>
-#include <vector>
-
-#include "base/task_scheduler/scheduler_worker_pool_params.h"
 #include "base/task_scheduler/task_scheduler.h"
 
-namespace base {
-class TaskTraits;
-}
-
 namespace task_scheduler_util {
 
 // Gets a TaskScheduler::InitParams object to initialize TaskScheduler in the
 // browser based off variations. Returns nullptr on failure.
 std::unique_ptr<base::TaskScheduler::InitParams>
 GetBrowserTaskSchedulerInitParamsFromVariations();
 
-// Gets a vector of SchedulerWorkerPoolParams to initialize TaskScheduler in the
-// browser based off variations. Returns an empty vector on failure.
-//
-// Deprecated. https://crbug.com/690706
-std::vector<base::SchedulerWorkerPoolParams>
-GetBrowserWorkerPoolParamsFromVariations();
-
-// Maps |traits| to the index of a browser worker pool vector provided by
-// GetBrowserWorkerPoolParamsFromVariations().
-//
-// Deprecated. https://crbug.com/690706
-size_t BrowserWorkerPoolIndexForTraits(const base::TaskTraits& traits);
-
 // Redirects zero-to-many PostTask APIs to the browser task scheduler based off
 // variations.
 void MaybePerformBrowserTaskSchedulerRedirection();
 
 }  // namespace task_scheduler_util
 
 #endif  // COMPONENTS_TASK_SCHEDULER_UTIL_BROWSER_INITIALIZATION_H_