Fix complex script field tests

Author: Snipx

forms/src/main/java/com/itextpdf/forms/fields/PdfFormField.java

@@ -2001,7 +2001,6 @@ protected void drawTextAppearance(Rectangle rect, PdfFont font, int fontSize, St
      * @param font     a {@link PdfFont}
      * @param fontSize a positive integer
      * @param value    the initial value
-     * @return the {@link PdfFormXObject Form XObject} that was drawn
      */
     protected void drawMultiLineTextAppearance(Rectangle rect, PdfFont font, int fontSize, String value, PdfFormXObject appearance) {
         PdfStream stream = new PdfStream().makeIndirect(getDocument());