remove some unused deps

package.json

@@ -37,8 +37,6 @@
     "babel-runtime": "6.x",
     "classnames": "~2.2.0",
     "css-animation": "^1.2.5",
-    "gregorian-calendar": "~4.1.0",
-    "gregorian-calendar-format": "~4.1.0",
     "moment": "~2.15.1",
     "object-assign": "~4.1.0",
     "omit.js": "^0.1.0",
@@ -100,7 +98,6 @@
     "enquire.js": "^2.1.1",
     "enzyme": "^2.6.0",
     "enzyme-to-json": "^1.3.0",
-    "es6-shim": "^0.35.0",
     "eslint": "^3.0.1",
     "eslint-config-airbnb": "latest",
     "eslint-plugin-babel": "^3.0.0",
@@ -136,8 +133,7 @@
     "react-sublime-video": "^0.2.0",
     "reqwest": "^2.0.5",
     "typescript-babel-jest": "^0.1.5",
-    "values.js": "^1.0.3",
-    "xhr2": "^0.1.3"
+    "values.js": "^1.0.3"
   },
   "babel": {
     "presets": [