[Example] Don't remove extraneous git dir

Just in case someone is mistakenly trying to use symlinks with RN.

Author: cooperka

example/package.json

@@ -4,7 +4,7 @@
   "private": true,
   "scripts": {
     "preinstall": "cd .. && npm run build",
-    "postinstall": "rm -rf node_modules/react-native-immutable-list-view/{node_modules,example,.git}",
+    "postinstall": "rm -rf node_modules/react-native-immutable-list-view/{node_modules,example}",
     "start": "node node_modules/react-native/local-cli/cli.js start"
   },
   "dependencies": {