Some modules actually rely on propTypes

Hi,

thank you for the plugin. It works well. I noticed though that some of the RN 3rd party modules rely on propTypes property. See for example react-native-vector-icons\lib\icon-button.js. Removing propTypes then results in

AndroidRuntime: com.facebook.react.common.JavascriptException: 
Requested keys of a value that is not an object., stack:

I modified my version of the plugin, so that only files not residing in node_modules are cleaned up preventing this type of crashes. In a function like isModule below I check if it’s my own file or not and only then remove propTypes:

	function isModule(scope) {
		if (!scope.hub.file.opts) {
			return true;
		}
		var filename = scope.hub.file.opts.filename;
		if (!filename) {
			return true;
		}
		return filename.indexOf("node_modules") !== -1;
	}

I thought maybe it’s worth adding an extra option to the plugin that would allow to skip 3rd party modules modification if needed.

[timdorr]

PRs > Issues. Go right ahead and I’ll look at merging it and and pushing out a patch release.

[rosskevin]

Yes, I’m on V3 though (due to relay) and looking to just ignore that one file. BTW - looks like babel-preset-react-optimize isn’t being maintained and references this project.