removed cookieSyncDelay from config since we have more configurat…

…ion options now with the `userSync` object (prebid#3142)

src/config.js

@@ -16,7 +16,6 @@ const utils = require('./utils');
 const DEFAULT_DEBUG = false;
 const DEFAULT_BIDDER_TIMEOUT = 3000;
 const DEFAULT_PUBLISHER_DOMAIN = window.location.origin;
-const DEFAULT_COOKIESYNC_DELAY = 100;
 const DEFAULT_ENABLE_SEND_ALL_BIDS = true;
 const DEFAULT_DISABLE_AJAX_TIMEOUT = false;
 
@@ -84,15 +83,6 @@ export function newConfig() {
         this._publisherDomain = val;
       },
 
-      // delay to request cookie sync to stay out of critical path
-      _cookieSyncDelay: DEFAULT_COOKIESYNC_DELAY,
-      get cookieSyncDelay() {
-        return $$PREBID_GLOBAL$$.cookieSyncDelay || this._cookieSyncDelay;
-      },
-      set cookieSyncDelay(val) {
-        this._cookieSyncDelay = val;
-      },
-
       // calls existing function which may be moved after deprecation
       _priceGranularity: GRANULARITY_OPTIONS.MEDIUM,
       set priceGranularity(val) {

src/prebid.js

@@ -667,7 +667,6 @@ $$PREBID_GLOBAL$$.getConfig = config.getConfig;
  * @param {boolean} options.enableSendAllBids Turn "send all bids" mode on/off.  Example: `pbjs.setConfig({ enableSendAllBids: true })`.
  * @param {number} options.bidderTimeout Set a global bidder timeout, in milliseconds.  Example: `pbjs.setConfig({ bidderTimeout: 3000 })`.  Note that it's still possible for a bid to get into the auction that responds after this timeout. This is due to how [`setTimeout`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/setTimeout) works in JS: it queues the callback in the event loop in an approximate location that should execute after this time but it is not guaranteed.  For more information about the asynchronous event loop and `setTimeout`, see [How JavaScript Timers Work](https://johnresig.com/blog/how-javascript-timers-work/).
  * @param {string} options.publisherDomain The publisher's domain where Prebid is running, for cross-domain iFrame communication.  Example: `pbjs.setConfig({ publisherDomain: "https://www.theverge.com" })`.
- * @param {number} options.cookieSyncDelay A delay (in milliseconds) for requesting cookie sync to stay out of the critical path of page load.  Example: `pbjs.setConfig({ cookieSyncDelay: 100 })`.
  * @param {Object} options.s2sConfig The configuration object for [server-to-server header bidding](http://prebid.org/dev-docs/get-started-with-prebid-server.html).  Example:
  * @alias module:pbjs.setConfig
  * ```