Remove deprecated functions from components/task_scheduler_util/.

components/task_scheduler_util/browser/initialization.h

Index: components/task_scheduler_util/browser/initialization.h
diff --git a/components/task_scheduler_util/browser/initialization.h b/components/task_scheduler_util/browser/initialization.h
index 9c660507112f10ddd7c0587638a2781334acb2e6..46ad21860f2e54c32843e6edbf57fd76a1f5cfdb 100644
--- a/components/task_scheduler_util/browser/initialization.h
+++ b/components/task_scheduler_util/browser/initialization.h
@@ -5,18 +5,10 @@
 #ifndef COMPONENTS_TASK_SCHEDULER_UTIL_BROWSER_INITIALIZATION_H_
 #define COMPONENTS_TASK_SCHEDULER_UTIL_BROWSER_INITIALIZATION_H_
 
-#include <stddef.h>
-
 #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
@@ -24,19 +16,6 @@ namespace task_scheduler_util {
 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();