Remove this.resource from RouterDSL

packages/ember-routing/lib/index.d.ts

@@ -71,7 +71,6 @@ export class RouterDSL {
   constructor(name: string, options: any);
   route(name: string, options: any, callback: ()=>any): void;
   push(url: string, name: string, callback: ()=>any, serialize: ()=>any): void;
-  resource(name: string, options: any, callback: ()=>any): void;
   genearte(): (match: any) => void;
   mount(_name: string, options: any): void;
 }

packages/ember-routing/lib/system/dsl.js

@@ -1,5 +1,5 @@
 import { assign } from 'ember-utils';
-import { assert, deprecate } from 'ember-debug';
+import { assert } from 'ember-debug';
 
 let uuid = 0;
 
@@ -66,17 +66,6 @@ class DSL {
     this.matches.push(url, name, callback);
   }
 
-  resource(name, options = {}, callback) {
-    if (arguments.length === 2 && typeof options === 'function') {
-      callback = options;
-      options = {};
-    }
-
-    options.resetNamespace = true;
-    deprecate('this.resource() is deprecated. Use this.route(\'name\', { resetNamespace: true }, function () {}) instead.', false, { id: 'ember-routing.router-resource', until: '3.0.0' });
-    this.route(name, options, callback);
-  }
-
   generate() {
     let dslMatches = this.matches;
 

packages/ember-routing/tests/system/dsl_test.js

@@ -15,10 +15,9 @@ moduleFor('Ember Router DSL', class extends AbstractTestCase {
   }
 
   ['@test should fail when using a reserved route name'](assert) {
-    expectDeprecation('this.resource() is deprecated. Use this.route(\'name\', { resetNamespace: true }, function () {}) instead.');
     let reservedNames = ['array', 'basic', 'object', 'application'];
 
-    assert.expect((reservedNames.length * 2) + 1);
+    assert.expect(reservedNames.length);
 
     reservedNames.forEach(reservedName => {
       expectAssertion(() => {
@@ -31,37 +30,7 @@ moduleFor('Ember Router DSL', class extends AbstractTestCase {
         let router = Router.create();
         router._initRouterJs();
       }, '\'' + reservedName + '\' cannot be used as a route name.');
-
-      expectAssertion(() => {
-        Router = EmberRouter.extend();
-
-        Router.map(function() {
-          this.resource(reservedName);
-        });
-
-        let router = Router.create();
-        router._initRouterJs();
-      }, `'${reservedName}' cannot be used as a route name.`);
-    });
-  }
-
-  ['@test should reset namespace if nested with resource'](assert) {
-    expectDeprecation('this.resource() is deprecated. Use this.route(\'name\', { resetNamespace: true }, function () {}) instead.');
-
-    Router = Router.map(function() {
-      this.resource('bleep', function() {
-        this.resource('bloop', function() {
-          this.resource('blork');
-        });
-      });
     });
-
-    let router = Router.create();
-    router._initRouterJs();
-
-    assert.ok(router._routerMicrolib.recognizer.names['bleep'], 'nested resources do not contain parent name');
-    assert.ok(router._routerMicrolib.recognizer.names['bloop'], 'nested resources do not contain parent name');
-    assert.ok(router._routerMicrolib.recognizer.names['blork'], 'nested resources do not contain parent name');
   }
 
   ['@test should retain resource namespace if nested with routes'](assert) {