Fix rnpm warning (android)

[AlphaGolf33]

Fix the following warning during Android build :

warn The following packages use deprecated "rnpm" config that will stop working from next release:
  - react-native-sms: https://github.com/tkporter/react-native-sms
Please notify their maintainers about it. You can find more details at https://github.com/react-native-community/cli/blob/master/docs/configuration.md#migration-guide.

It works without rnpm.

Tested on a Samsung Galaxy Note 4 on Android 6.0.1 with react-native 0.61.5