Remove unused method.

src/main/java/azgracompress/utilities/Utils.java

@@ -3,9 +3,6 @@ package azgracompress.utilities;
 import azgracompress.U16;
 import azgracompress.data.Range;
 
-import java.io.FileInputStream;
-import java.io.FileNotFoundException;
-import java.io.IOException;
 import java.util.ArrayList;
 
 
@@ -20,17 +17,6 @@ public class Utils {
         return psnr;
     }
 
-    public static byte[] readFileBytes(final String path) throws FileNotFoundException {
-        FileInputStream fileStream = new FileInputStream(path);
-        try {
-            throw new FileNotFoundException("Implement this actually!");
-            //            return fileStream.readAllBytes();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return new byte[0];
-    }
-
     public static <T> boolean arrayContains(final T[] array, final T element) {
         for (int i = 0; i < array.length; i++) {
             if (array[i].equals(element))