remove ChangeOperationModeStatus manipulation (#71)

// remove ChangeOperationModeStatus manipulation

# Checklist

The following aspects have been respected by the author of this pull
request, confirmed by both pull request assignee **and** reviewer:

* Changelog update (necessity checked and entry added or not added
respectively)
  * [x] Pull Request Assignee
  * [x] Reviewer
* README update (necessity checked and entry added or not added
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CHANGELOG.md

@@ -18,6 +18,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - gRPC version to 1.58.0
 - protoc version to 24.1
 
+### Removed
+
+- manipulation ChangeOperationModeStatus for metrics
+
 ## [3.0.0] - 2023-09-11
 
 ### Added

src/t2iapi/metric/metric_requests.proto

@@ -42,14 +42,6 @@ message SetMetricValuesInRangeRequest {
     string upper = 3;   // upper limit for setting the new pm:MetricValue/@Value or @Samples
 }
 
-/*
-Request to change the status of an operation mode.
- */
-message ChangeOperationModeStatusRequest {
-    string handle = 1;  // handle of the enum metric, which represents the operation mode
-    OperationModeStatus operation_mode_status = 2;  // defines if the operation mode status shall be applied
-}
-
 /*
 Request a change of the status of a metric.
  */

src/t2iapi/metric/service.proto

@@ -70,17 +70,6 @@ service MetricService {
   rpc SetMetricValuesInRange (t2iapi.metric.SetMetricValuesInRangeRequest)
       returns (BasicResponse);
 
-  /*
-  Change the status of an operation mode.
-
-  An operation mode represents a specific behaviour of a device that can be enabled, paused or disabled,
-  typically by the user.
-  BICEPS does not provide a model element out of the box that can be used for such a mode, thus the operation mode
-  is represented by a pm:EnumStringMetricDescriptor, as described by MPKP draft.
-   */
-  rpc ChangeOperationModeStatus (t2iapi.metric.ChangeOperationModeStatusRequest)
-      returns (BasicResponse);
-
   /*
   Set the provided measurement, calculation or setting status for the metric of the provided handle. This is not the
   AbstractMetricState/@ActivationState, but the internal state of the device.

src/t2iapi/metric/types.proto

@@ -36,15 +36,6 @@ enum GenerationMode{
     GENERATION_MODE_DEMO = 2;
 }
 
-/*
-Defines the possible operation mode states according to MPKP draft.
- */
-enum OperationModeStatus {
-    OPERATION_MODE_STATUS_ON = 0;  // operation mode is applied
-    OPERATION_MODE_STATUS_OFF = 1;  // operation mode is not applied, but available
-    OPERATION_MODE_STATUS_PAUSED = 2;  // operation mode is not applied, but available
-}
-
 /*
 Defines the possible non-exclusive MODE OF OPERATION according to MPKP (11073-10701-2022).
 These are represented as an enum metric where the instances of pm:AllowedValue have the pm:Type of: