Revert of Implemented consumer management unenrollment.

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

Index: components/policy/core/common/cloud/cloud_policy_service.h
diff --git a/components/policy/core/common/cloud/cloud_policy_service.h b/components/policy/core/common/cloud/cloud_policy_service.h
index 9dc00b4bfcdaeadce3d36967a7f181269f0a1aa2..66ecc8eb03de84647d31c9c961b79a3eb6a9ac43 100644
--- a/components/policy/core/common/cloud/cloud_policy_service.h
+++ b/components/policy/core/common/cloud/cloud_policy_service.h
@@ -26,11 +26,7 @@
  public:
   // Callback invoked once the policy refresh attempt has completed. Passed
   // bool parameter is true if the refresh was successful (no error).
-  using RefreshPolicyCallback = base::Callback<void(bool)>;
-
-  // Callback invoked once the unregister attempt has completed. Passed bool
-  // parameter is true if unregistering was successful (no error).
-  using UnregisterCallback = base::Callback<void(bool)>;
+  typedef base::Callback<void(bool)> RefreshPolicyCallback;
 
   class POLICY_EXPORT Observer {
    public:
@@ -56,11 +52,6 @@
   // or aborts because of errors.
   void RefreshPolicy(const RefreshPolicyCallback& callback);
 
-  // Unregisters the device. |callback| will be invoked after the operation
-  // completes or aborts because of errors. All pending refresh policy requests
-  // will be aborted, and no further refresh policy requests will be allowed.
-  void Unregister(const UnregisterCallback& callback);
-
   // Adds/Removes an Observer for this object.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
@@ -85,10 +76,6 @@
   // is passed through to the refresh callbacks.
   void RefreshCompleted(bool success);
 
-  // Invokes the unregister callback and clears unregister state. The |success|
-  // flag is passed through to the unregister callback.
-  void UnregisterCompleted(bool success);
-
   // The policy type that will be fetched by the |client_|, with the optional
   // |settings_entity_id_|.
   std::string policy_type_;
@@ -110,16 +97,8 @@
     REFRESH_POLICY_STORE,
   } refresh_state_;
 
-  // Tracks the state of a pending unregister operation, if any.
-  enum {
-    UNREGISTER_NONE,
-    UNREGISTER_PENDING,
-  } unregister_state_;
-
   // Callbacks to invoke upon policy refresh.
   std::vector<RefreshPolicyCallback> refresh_callbacks_;
-
-  UnregisterCallback unregister_callback_;
 
   // Set to true once the service is initialized (initial policy load/refresh
   // is complete).