Remove AsyncStorage package dependency for React Native

## Summary

After setting up our own custom storage provider (we are currently using `react-native-mmkv-storage`), we intend to remove the AsyncStorage library. However, we run into the error when trying to do so: `Error: [@RNC/AsyncStorage]: NativeModule: AsyncStorage is null`

Would like to know if there's a way we can completely remove the dependency on `@react-native-async-storage/async-storage` from the Amplitude package or if there's a recommended workaround for this issue?