remove obsolete dependencies (#105)

Author: laurenzlong

package.json

@@ -32,7 +32,6 @@
     "@types/mock-require": "^1.3.3",
     "@types/nock": "^0.54.32",
     "@types/node": "^6.0.38",
-    "@types/request": "0.0.30",
     "@types/sinon": "^1.16.29",
     "chai": "^3.5.0",
     "chai-as-promised": "^5.2.0",
@@ -52,13 +51,10 @@
     "@types/express": "^4.0.33",
     "@types/jsonwebtoken": "^7.1.32",
     "@types/lodash": "^4.14.34",
-    "@types/request-promise": "^3.0.30",
     "@types/sha1": "^1.1.0",
     "express": "^4.0.33",
     "jsonwebtoken": "^7.1.9",
     "lodash": "^4.6.1",
-    "request": "^2.74.0",
-    "request-promise": "^4.1.1",
     "sha1": "^1.1.1"
   },
   "typings": "lib/index.d.ts"