Remove unneccessary variable

Author: t-ober

src/main/java/edu/ie3/datamodel/io/connectors/CsvFileConnector.java

@@ -117,10 +117,9 @@ private BufferedCsvWriter initWriter(String baseDirectory, CsvFileDefinition fil
     if (!directories.exists() && !directories.mkdirs())
       throw new IOException("Unable to create directory tree '" + directories + "'");
 
-    boolean append = false;
     BufferedCsvWriter writer =
         new BufferedCsvWriter(
-            fullPath, fileDefinition.headLineElements(), fileDefinition.csvSep(), append);
+            fullPath, fileDefinition.headLineElements(), fileDefinition.csvSep(), false);
     writer.writeFileHeader();
 
     return writer;