Revert of Don't set a default value for the NTPContentSuggestionsEnabled policy if ChromeHome is enabled

components/policy/core/common/cloud/user_cloud_policy_manager.h

Index: components/policy/core/common/cloud/user_cloud_policy_manager.h
diff --git a/components/policy/core/common/cloud/user_cloud_policy_manager.h b/components/policy/core/common/cloud/user_cloud_policy_manager.h
index 26dcde307baf630a9a0a0d528e871def4e69f8b9..a8bfd4535d8ed2c3d8ba71363926c93955d94145 100644
--- a/components/policy/core/common/cloud/user_cloud_policy_manager.h
+++ b/components/policy/core/common/cloud/user_cloud_policy_manager.h
@@ -48,9 +48,6 @@
       const scoped_refptr<base::SequencedTaskRunner>& io_task_runner);
   ~UserCloudPolicyManager() override;
 
-  // TODO(treib): Remove this again. crbug.com/708191
-  void SetChromeHomeEnabled() { chrome_home_enabled_ = true; }
-
   // ConfigurationPolicyProvider overrides:
   void Shutdown() override;
 
@@ -96,9 +93,6 @@
   // Manages external data referenced by policies.
   std::unique_ptr<CloudExternalDataManager> external_data_manager_;
 
-  // TODO(treib): Remove this again. crbug.com/708191
-  bool chrome_home_enabled_;
-
   DISALLOW_COPY_AND_ASSIGN(UserCloudPolicyManager);
 };