alloy: Remove optimization/prediction service usage (see issue #3352)

This service is required by the "PermissionOnDeviceNotificationPredictions"
feature which is enabled by default in https://crbug.com/1350956. It uses a
Google backend service as described at https://go.dev/solutions/google/chrome.

This change removes the usage of PredictionBasedPermissionUiSelector, which
triggered this dependency, along with related startup complexity that was added
to support the optimization/prediction service in the M106 update.

libcef/browser/alloy/chrome_browser_process_alloy.h

@@ -16,14 +16,12 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/event_router_forwarder.h"
 #include "media/media_buildflags.h"
-#include "services/network/public/cpp/network_quality_tracker.h"
 
 namespace extensions {
 class ExtensionsBrowserClient;
 class ExtensionsClient;
 }  // namespace extensions
 
-class ChromeMetricsServicesManagerClient;
 class ChromeProfileManagerAlloy;
 
 class BackgroundModeManager {
@@ -131,16 +129,6 @@ class ChromeBrowserProcessAlloy : public BrowserProcess {
       background_printing_manager_;
   std::unique_ptr<PrefService> local_state_;
 
-  // |metrics_services_manager_| owns this.
-  raw_ptr<ChromeMetricsServicesManagerClient> metrics_services_manager_client_ =
-      nullptr;
-
-  // Must be destroyed before |local_state_| and |profile_manager_|.
-  std::unique_ptr<metrics_services_manager::MetricsServicesManager>
-      metrics_services_manager_;
-
-  std::unique_ptr<network::NetworkQualityTracker> network_quality_tracker_;
-
   // Must be destroyed after |local_state_|.
   std::unique_ptr<policy::ChromeBrowserPolicyConnector>
       browser_policy_connector_;