Remove useless TODO

DEVSIX-4612

Author: introfog

kernel/src/test/java/com/itextpdf/kernel/pdf/OcgPropertiesCopierTest.java

@@ -216,7 +216,6 @@ public void copyOcgWithEmptyOCGsInOCPropertiesTest() throws IOException {
             try (PdfDocument fromDocument = new PdfDocument(new PdfReader(new ByteArrayInputStream(fromDocBytes)))) {
                 // This test verifies that if the PDF is invalid, i.e. if OCProperties.OCGs is empty in the document,
                 // but there are OCGs that are used on the page, then OCGs will be copied
-                // TODO DEVSIX-4393 I think this is normal behavior, Yulian what you think about it?
                 Assert.assertTrue(fromDocument.getCatalog().getPdfObject().getAsDictionary(PdfName.OCProperties).getAsArray(PdfName.OCGs).isEmpty());
 
                 fromDocument.copyPagesTo(1, 1, toDocument);

layout/src/test/java/com/itextpdf/layout/BackgroundImageTest.java

@@ -260,7 +260,6 @@ public void backgroundImagesWithPositionTest() throws IOException, InterruptedEx
     }
 
     @Test
-    //TODO DEVSIX-3108
     public void backgroundXObject() throws IOException, InterruptedException {
         String filename = "backgroundXObject";