Hello all I want to remove the selected dropdown item in dynamic generated table but I am not getting it below is my code and images

in above image I want daniya powder to be removed in all other dynamic table and so on.. below is my code on plus add also it will be removed

$(document).on('change', '.item_name', function(){            
           
            
            var dropdownvalue = $(this).val();
            $(".item_name").not(this).find('option[value="' + dropdownvalue + '"]').remove();
            
                     
        });