Remove a few more extension d.ts files that are not needed

extensions/vscode-colorize-tests/package.json

@@ -13,6 +13,7 @@
 		"postinstall": "node ./node_modules/vscode/bin/install"
 	},
 	"devDependencies": {
+		"@types/mocha": "^2.2.38",
 		"@types/node": "^7.0.4",
 		"typescript": "^1.6.2",
 		"vscode": "1.0.1"

extensions/vscode-colorize-tests/src/typings/ref.d.ts

@@ -3,5 +3,5 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
-/// <reference path='../../../../src/typings/mocha.d.ts'/>
+/// <reference path='../../node_modules/@types/mocha/index.d.ts'/>
 /// <reference path='../../node_modules/@types/node/index.d.ts'/>

extensions/vscode-colorize-tests/typings/mocha.d.ts

@@ -1,13 +0,0 @@
-/*---------------------------------------------------------------------------------------------
- *  Copyright (c) Microsoft Corporation. All rights reserved.
- *  Licensed under the MIT License. See License.txt in the project root for license information.
- *--------------------------------------------------------------------------------------------*/
-
-declare function run(): void;
-
-declare function suite(name: string, fn: (err?) => void);
-declare function test(name: string, fn: (done?: (err?) => void) => void);
-declare function suiteSetup(fn: (done?: (err?) => void) => void);
-declare function suiteTeardown(fn: (done?: (err?) => void) => void);
-declare function setup(fn: (done?: (err?) => void) => void);
-declare function teardown(fn: (done?: (err?) => void) => void);