[streaming] remove java.nio from TestDataUtilTest

flink-addons/flink-streaming/src/main/java/eu/stratosphere/streaming/util/TestDataUtil.java

@@ -19,7 +19,6 @@ import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
 import java.io.FileReader;
 import java.io.FileWriter;
 import java.io.IOException;

flink-addons/flink-streaming/src/test/java/eu/stratosphere/streaming/util/TestDataUtilTest.java

@@ -22,9 +22,6 @@ import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStreamReader;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
 
 import org.junit.Test;
 
@@ -34,8 +31,6 @@ public class TestDataUtilTest {
 //	public void testDownload() throws FileNotFoundException, IOException {
 //		String fileToDownload = "hamlet.txt";
 //		String expectedFile = "hamletTestExpectation.txt";
-//
-//		deleteFile(TestDataUtil.testDataDir + fileToDownload);
 //		
 //		TestDataUtil.download(fileToDownload);
 //
@@ -43,12 +38,6 @@ public class TestDataUtilTest {
 //				+ fileToDownload));
 //	}
 
-	public void deleteFile(String fileLocation) throws IOException{
-		Path path = Paths.get(fileLocation);
-		if(Files.exists(path))
-			Files.delete(path);
-	}
-
 	public boolean compareFile(String file1, String file2) throws FileNotFoundException,
 			IOException {