use native http module instead of request dependency

[endel]

I've found redbird today, and was going to test it, but noticed that redbird has too many dependencies. dolphin/request being one of them.

This pull-request just removes request, as it has 20 dependencies only for using GET + JSON parsing.

See the dependency graph below:

And now, without request:

[endel]

BTW, I couldn't run the unit tests. I'd appreciate if you can validate if this change doesn't break anything 🙏