Fix build issues

package.json

@@ -60,7 +60,7 @@
     "jsdoc": "3.4.3",
     "jsdom": "^11.1.0",
     "merge-stream": "^1.0.1",
-    "node-pty": "^0.6.0",
+    "node-pty": "^0.7.2",
     "nodemon": "1.10.2",
     "sorcery": "^0.10.0",
     "tslint": "^4.0.2",

src/addons/winptyCompat/winptyCompat.ts

@@ -4,10 +4,7 @@
  */
 
 declare var exports: any;
-declare var module: any;
 declare var define: any;
-declare var require: any;
-declare var window: any;
 
 (function (addon) {
   if (typeof window !== 'undefined' && 'Terminal' in window) {