remove variation code

remove-variant.liquid

$( document ).ready(function() {
  if( typeof product_variants_removed != undefined ) {  // was there items to be removed?
    var $addToCartForm = $('form[action="/cart/add"]');
    if (window.MutationObserver && $addToCartForm.length) {
      if (typeof observer === 'object' && typeof observer.disconnect === 'function') {
        observer.disconnect();
      }
      var config = { childList: true, subtree: true };
      var observer = new MutationObserver(function() {
        product_variants_removed.forEach(function(item){
          $('.single-option-selector option').filter(function() { return $(this).val() === item; }).remove();
        });
        observer.disconnect();
      });  
      observer.observe($addToCartForm[0], config);
      $('.single-option-selector').trigger('change');
    }
  }
});