docs(decorators): remove statements toward module.decorator order

Commit 6a2ebdb removes the caveat of declaring a provider prior to
decorating it through the module.decorator function.

Remove statements warning of the prior requirement for order of
operations.

See angular#12382, PR angular#14348, and [angular#14372 comment 206452412]
(angular#14372 (comment))

docs/content/guide/decorators.ngdoc

@@ -161,37 +161,6 @@ the end of the name. The `$delegate` provided is dictated by the type of service
 This {@link api/ng/type/angular.Module#decorator function} is the same as the `$provide.decorator` function except it is
 exposed through the module API. This allows you to separate your decorator patterns from your module config blocks.
 
-Like with `$provide.decorator`, the `module.decorator` function runs during the config phase of the app. That means
-you can define a `module.decorator` before the decorated service is defined.
-
-Since you can apply multiple decorators, it is noteworthy that decorator application always follows order
-of declaration:
-
-- If a service is decorated by both `$provide.decorator` and `module.decorator`, the decorators are applied in order:
-
-```js
-angular
-  .module('theApp', [])
-  .factory('theFactory', theFactoryFn)
-  .config(function($provide) {
-    $provide.decorator('theFactory', provideDecoratorFn); // runs first
-  })
-  .decorator('theFactory', moduleDecoratorFn); // runs seconds
-```
-
-- If the service has been declared multiple times, a decorator will decorate the service that has been declared
-last:
-
-```js
-angular
-  .module('theApp', [])
-  .factory('theFactory', theFactoryFn)
-  .decorator('theFactory', moduleDecoratorFn)
-  .factory('theFactory', theOtherFactoryFn);
-
-// `theOtherFactoryFn` is selected as 'theFactory' provider and it is decorated via `moduleDecoratorFn`.
-```
-
 ## Example Applications
 
 The following sections provide examples each of a service decorator, a directive decorator, and a filter decorator.