Reverts Start Workflow Action metering change (temporalio#7554)

Author: mastermanu

common/rpc/interceptor/telemetry.go

@@ -257,6 +257,14 @@ func (ti *TelemetryInterceptor) emitActionMetric(
 	}
 
 	switch methodName {
+	case startWorkflowExecution:
+		resp, ok := result.(*workflowservice.StartWorkflowExecutionResponse)
+		if !ok {
+			return
+		}
+		if resp.Started {
+			metrics.ActionCounter.With(metricsHandler).Record(1, metrics.ActionType("grpc_"+methodName))
+		}
 	case executeMultiOperation:
 		resp, ok := result.(*workflowservice.ExecuteMultiOperationResponse)
 		if !ok {

common/rpc/interceptor/telemetry_test.go

@@ -71,10 +71,15 @@ func TestEmitActionMetric(t *testing.T) {
 		req               any
 		resp              any
 	}{
+		{
+			methodName: startWorkflow,
+			fullName:   api.WorkflowServicePrefix + startWorkflow,
+			resp:       &workflowservice.StartWorkflowExecutionResponse{Started: false},
+		},
 		{
 			methodName:        startWorkflow,
 			fullName:          api.WorkflowServicePrefix + startWorkflow,
-			resp:              &workflowservice.StartWorkflowExecutionResponse{},
+			resp:              &workflowservice.StartWorkflowExecutionResponse{Started: true},
 			expectEmitMetrics: true,
 		},
 		{