Remove enterprise serial number recovery feature

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

Index: components/policy/core/common/cloud/cloud_policy_client.h
diff --git a/components/policy/core/common/cloud/cloud_policy_client.h b/components/policy/core/common/cloud/cloud_policy_client.h
index 128e2a727d05daa858cebedf998230ad7f6387c5..d5cf0a11a3c68c85ac27c8da6e57cda921a16316 100644
--- a/components/policy/core/common/cloud/cloud_policy_client.h
+++ b/components/policy/core/common/cloud/cloud_policy_client.h
@@ -203,10 +203,6 @@ class POLICY_EXPORT CloudPolicyClient {
   const std::string& machine_id() const { return machine_id_; }
   const std::string& machine_model() const { return machine_model_; }
 
-  void set_submit_machine_id(bool submit_machine_id) {
-    submit_machine_id_ = submit_machine_id;
-  }
-
   void set_last_policy_timestamp(const base::Time& timestamp) {
     last_policy_timestamp_ = timestamp;
   }
@@ -385,9 +381,6 @@ class POLICY_EXPORT CloudPolicyClient {
   bool public_key_version_valid_ = false;
   std::string robot_api_auth_code_;
 
-  // Whether to send |machine_id_| as part of policy fetch.
-  bool submit_machine_id_ = false;
-
   // Information for the latest policy invalidation received.
   int64_t invalidation_version_ = 0;
   std::string invalidation_payload_;