Unbind

<script>
var obj = new kendo.Observable();
var numberOfCalls = 0;
function handler(e) {
    numberOfCalls ++;
}
obj.bind("myevent", handler); // subscribe to the event
obj.trigger("myevent"); // fire the event
obj.unbind("myevent", handler); // unsubscribe from the event
obj.trigger("myevent"); // fire the event
/* The result can be observed in the DevTools(F12) console of the browser. */
console.log(numberOfCalls); // outputs "1"
</script>