delete unused files

packages/waterfall/CHANGELOG.md

@@ -1,8 +0,0 @@
-## 0.0.2 (2017-01-20)
-
-* 改了bug A
-* 加了功能B
-
-## 0.0.1 (2017-01-10)
-
-* 第一版

packages/waterfall/package.json

@@ -1,10 +0,0 @@
-{
-  "name": "@youzan/waterfall",
-  "version": "0.0.1",
-  "description": "瀑布流",
-  "main": "./lib/index.js",
-  "author": "pangxie1991",
-  "license": "MIT",
-  "devDependencies": {},
-  "dependencies": {}
-}

packages/waterfall/src/directive.js

@@ -1,4 +1,4 @@
-import Utils from 'packages/utils/scroll.js';
+import Utils from '../../utils/scroll.js';
 
 const CONTEXT = '@@Waterfall';
 const OFFSET = 300;