remove unused deps

package.json

@@ -64,25 +64,13 @@
     "lusca": "~1.0.2",
     "method-override": "~2.3.0",
     "moment": "~2.10.2",
-    "mongodb": "~1.4.33",
-    "mongoose": "~4.0.1",
-    "mongoose-long": "0.0.2",
     "morgan": "~1.5.0",
     "node-slack": "0.0.7",
     "nodemailer": "~1.3.0",
-    "passport": "~0.2.1",
-    "passport-facebook": "~1.0.3",
-    "passport-github": "~0.1.5",
-    "passport-google-oauth": "~0.1.5",
-    "passport-linkedin-oauth2": "~1.2.1",
-    "passport-local": "~1.0.0",
-    "passport-oauth": "~1.0.0",
-    "passport-twitter": "~1.0.2",
     "ramda": "~0.10.0",
     "request": "~2.53.0",
     "rx": "^2.5.3",
     "sanitize-html": "~1.6.1",
-    "sitemap": "~0.7.4",
     "twit": "~1.1.20",
     "uglify-js": "~2.4.15",
     "validator": "~3.22.1",