Remove modules from source

node_modules/shelljs/global.js

@@ -1,12 +0,0 @@
-/* eslint no-extend-native: 0 */
-var shell = require('./shell.js');
-var common = require('./src/common');
-Object.keys(shell).forEach(function (cmd) {
-  global[cmd] = shell[cmd];
-});
-
-var _to = require('./src/to');
-String.prototype.to = common.wrap('to', _to);
-
-var _toEnd = require('./src/toEnd');
-String.prototype.toEnd = common.wrap('toEnd', _toEnd);