Remove unused dependencies

package.json

@@ -34,9 +34,7 @@
     "react-native-push-notification": "^3.1.1",
     "react-native-share": "^1.1.0",
     "react-native-vector-icons": "^5.0.0",
-    "react-navigation": "^2.0.4",
-    "realm": "^2.7.1",
-    "uuid": "^3.2.1"
+    "realm": "^2.7.1"
   },
   "devDependencies": {
     "@babel/register": "^7.0.0-beta.55",
@@ -46,8 +44,7 @@
     "dirty-chai": "^2.0.1",
     "eslint": "^4.19.1",
     "eslint-plugin-react": "^7.8.2",
-    "mocha": "^5.2.0",
-    "react-test-renderer": "16.3.1"
+    "mocha": "^5.2.0"
   },
   "description": "A menstrual cycle tracking app that's open-source and leaves your data on your phone. Use it to track your menstrual cycle or for fertility awareness!",
   "main": "index.js",