Error while evaluating javascript input: Error: dojo.require and dojo.provide are not supported in Mendix 7. Please, use AMD style for custom widgets.”

 we are getting an error on the UI, when the JS run to remove the blank option mentioned in “https://forum.mendixcloud.com/link/ideas/26” forum, its working in 6.9 but not in 7.3 we are getting “Error while evaluating javascript input: Error: dojo.require and dojo.provide are not supported in Mendix 7. Please, use AMD style for custom widgets.” for the blow java script in HTMLSnippet

var selector;
selector = dijit.registry.byNode(this.domNode.previousSibling);
if (typeof selector === "undefined") {
       selector = dijit.registry.byNode(this.domNode.previousSibling.children[1]);
}

dojo.require("dojo.aspect");
dojo.aspect.after(selector, "_renderOptions", function(deferred){
       this._editNode.removeChild(this._editNode.children[0]);
       return deferred;
});