Remove more unused imports

src/final_assignment/task_2/CaseCreator.java

@@ -4,10 +4,6 @@ import edu.kit.informatik.Terminal;
 import test.TestPair;
 
 import java.io.*;
-import java.nio.file.Files;
-import java.nio.file.Paths;
-import java.util.LinkedList;
-import java.util.List;
 import java.util.Random;
 import java.util.Vector;