Remove the CrosHealthdMetricsProvider

This provider is preventing the AsyncInit task from ever completing,
which is causing a major drop-off in Chrome OS metrics.

Bug: b:165076656
Change-Id: I4d8a700b3b11a6cb9db4fddeebc75e5484a0d137
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2368142
Auto-Submit: Ilya Sherman <isherman@chromium.org>
Reviewed-by: Weilun Shi <sweilun@chromium.org>
Commit-Queue: Weilun Shi <sweilun@chromium.org>
Commit-Queue: Ilya Sherman <isherman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800444}

chrome/browser/metrics/chrome_metrics_service_client.cc

@@ -148,7 +148,6 @@
 #include "chrome/browser/metrics/ambient_mode_metrics_provider.h"
 #include "chrome/browser/metrics/assistant_service_metrics_provider.h"
 #include "chrome/browser/metrics/chromeos_metrics_provider.h"
-#include "chrome/browser/metrics/cros_healthd_metrics_provider.h"
 #include "chrome/browser/signin/signin_status_metrics_provider_chromeos.h"
 #include "components/metrics/structured/structured_metrics_provider.h"
 #endif
@@ -709,9 +708,6 @@ void ChromeMetricsServiceClient::RegisterMetricsServiceProviders() {
       std::make_unique<ChromeOSMetricsProvider>(
           metrics::MetricsLogUploader::UMA));
 
-  metrics_service_->RegisterMetricsProvider(
-      std::make_unique<CrosHealthdMetricsProvider>());
-
   metrics_service_->RegisterMetricsProvider(
       std::make_unique<SigninStatusMetricsProviderChromeOS>());
 

chrome/browser/metrics/chrome_metrics_service_client_unittest.cc

@@ -177,10 +177,10 @@ TEST_F(ChromeMetricsServiceClientTest, TestRegisterMetricsServiceProviders) {
 
 #if defined(OS_CHROMEOS)
   // AmbientModeMetricsProvider, AssistantServiceMetricsProvider,
-  // CrosHealthdMetricsProvider, ChromeOSMetricsProvider,
+  // ChromeOSMetricsProvider,
   // SigninStatusMetricsProviderChromeOS, PrinterMetricsProvider, and
   // HashedLoggingMetricsProvider.
-  expected_providers += 7;
+  expected_providers += 6;
 #endif  // defined(OS_CHROMEOS)
 
 #if !defined(OS_CHROMEOS)