Revert of Profile_Metrics integration with Keystone

chrome/browser/profiles/profile_metrics_mac.mm

-// Copyright 2015 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 "chrome/browser/profiles/profile_metrics.h"
-
-#include "base/numerics/safe_conversions.h"
-#include "chrome/browser/mac/keystone_glue.h"
-
-void ProfileMetrics::UpdateReportedOSProfileStatistics(
-    size_t active, size_t signedin) {
-  if (base::IsValueInRangeForNumericType<uint32_t>(active) &&
-      base::IsValueInRangeForNumericType<uint32_t>(signedin)) {
-    [[KeystoneGlue defaultKeystoneGlue]
-        updateProfileCountsWithNumProfiles:active
-                       numSignedInProfiles:signedin];
-  }
-}