refactor

Author: goekay

src/main/java/de/rwth/idsg/steve/ocpp/converter/Server15to16Impl.java

@@ -302,12 +302,9 @@ private static MeterValue toOcpp16MeterValue(ocpp.cs._2012._06.MeterValue e) {
     }
 
     private static List<MeterValue> toOcpp16TransactionData(List<TransactionData> transactionData) {
-        List<ocpp.cs._2012._06.MeterValue> combinedList = transactionData.stream()
-                                                                         .flatMap(data -> data.getValues().stream())
-                                                                         .collect(Collectors.toList());
-
-        return combinedList.stream()
-                           .map(Server15to16Impl::toOcpp16MeterValue)
-                           .collect(Collectors.toList());
+        return transactionData.stream()
+                              .flatMap(data -> data.getValues().stream())
+                              .map(Server15to16Impl::toOcpp16MeterValue)
+                              .collect(Collectors.toList());
     }
 }