Remove bluebird transform as regular dep

Author: jryans

package.json

@@ -64,7 +64,6 @@
     "test-multi": "karma start"
   },
   "dependencies": {
-    "babel-plugin-transform-async-to-bluebird": "^1.1.1",
     "babel-polyfill": "^6.26.0",
     "babel-runtime": "^6.26.0",
     "browser-request": "^0.3.3",