REFACTOR: Remove discourse/lib/throttle

app/assets/javascripts/application.js

@@ -26,7 +26,6 @@
 //= require ./discourse/lib/lock-on
 //= require ./discourse/lib/url
 //= require ./discourse/lib/debounce
-//= require ./discourse/lib/throttle
 //= require ./discourse/lib/quote
 //= require ./discourse/lib/key-value-store
 //= require ./discourse/lib/computed

app/assets/javascripts/discourse/lib/throttle.js.es6

@@ -1,19 +0,0 @@
-import { throttle } from "@ember/runloop";
-/**
-  Throttle a Javascript function. This means if it's called many times in a time limit it
-  should only be executed one time at most during this time limit
-  Original function will be called with the context and arguments from the last call made.
-**/
-export default function(func, spacing, immediate) {
-  let self, args;
-  const later = function() {
-    func.apply(self, args);
-  };
-
-  return function() {
-    self = this;
-    args = arguments;
-
-    throttle(null, later, spacing, immediate);
-  };
-}

app/assets/javascripts/discourse/models/composer.js.es6

@@ -16,7 +16,7 @@ import {
 } from "discourse-common/utils/decorators";
 import { escapeExpression, tinyAvatar } from "discourse/lib/utilities";
 import { propertyNotEqual } from "discourse/lib/computed";
-import throttle from "discourse/lib/throttle";
+import { throttle } from "@ember/runloop";
 import { Promise } from "rsvp";
 import { set } from "@ember/object";
 
@@ -226,15 +226,18 @@ const Composer = RestModel.extend({
     return this.set("metaData", EmberObject.create());
   },
 
-  // view detected user is typing
+  // called whenever the user types to update the typing time
-  typing: throttle(
+  typing() {
+    throttle(
+      this,
       function() {
         const typingTime = this.typingTime || 0;
         this.set("typingTime", typingTime + 100);
       },
       100,
       false
-  ),
+    );
+  },
 
   editingFirstPost: and("editingPost", "post.firstPost"),