misleading detail in the readme about the removal of imports
the readme suggests that this plugin removes both import statements and require statements, when it only actually removes require statements.
normally this works anyway because of the use of a preset like es2015 that converts the code to commonjs before the plugin is used. however, when using a preset that does not include the commonjs conversion, like es2015-rollup, the removal of the import does not happen.
i burned a decent amount of time to this since i'm fairly new to rollup. since this plugin had been working in the context of using the es2015 preset, i didn't investigate this plugin as the cluprit as early as i should have, but instead focused my time learning the internals of rollup. i ended up getting a clear explanation in rollup/rollup-plugin-babel#54
Sorry for the bad README.
I think we may only use this plugin in the node environment.
However, nodejs is not ready for the harmony modules.
This is why it doesn't handle import.
I hope I have enough time to fix it later. Glad to get a PR, some guides about writting a babel plugin, https://github.com/thejameskyle/babel-handbook