Remove autobind decorator. Fix bugs in AR view

mobile/package.json

@@ -3,7 +3,6 @@
   "version": "0.1.0",
   "private": true,
   "devDependencies": {
-    "babel-plugin-transform-decorators-legacy": "^1.3.4",
     "babel-preset-react-native-stage-0": "^1.0.1",
     "jest-react-native": "^18.0.0",
     "react-test-renderer": "16.2.0"
@@ -18,7 +17,7 @@
     "preset": "react-native"
   },
   "dependencies": {
-    "autobind-decorator": "^2.1.0",
+    "auto-bind2": "^1.0.3",
     "eventemitter3": "^3.1.0",
     "moment": "^2.22.1",
     "react": "^16.3.2",