Fix up the Song enum class

Co-authored-by: r3cp3ct <45179536+r3cp3ct@users.noreply.github.com>
Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

src/sig/engine/Song.java

@@ -1,22 +1,13 @@
 package sig.engine;
 
 import java.io.File;
-import java.io.IOException;
-
-import javax.sound.sampled.AudioFormat;
-import javax.sound.sampled.AudioInputStream;
-import javax.sound.sampled.AudioSystem;
-import javax.sound.sampled.DataLine;
-import javax.sound.sampled.LineUnavailableException;
-import javax.sound.sampled.SourceDataLine;
-import javax.sound.sampled.UnsupportedAudioFileException;
 
 public enum Song{
     WOOLOOKOLOGIE(new File("..","Woolookologie.wav"));
 
     File songFile;
 
-    public Song(File f) {
-        this.songFile=songFile;
+    Song(File f) {
+        this.songFile=f;
     }
 }