Fixed -Wunused-parameter warnings

plugins/samplemimo/limesdrmimo/limesdrmimo.cpp

@@ -1753,6 +1753,7 @@ int LimeSDRMIMO::webapiRunGet(
     SWGSDRangel::SWGDeviceState& response,
     QString& errorMessage)
 {
+    (void) subsystemIndex;
     (void) errorMessage;
     m_deviceAPI->getDeviceEngineStateStr(*response.getState());
     return 200;
@@ -2334,4 +2335,4 @@ void LimeSDRMIMO::networkManagerFinished(QNetworkReply *reply)
     }
 
     reply->deleteLater();
-}
+}