Summary:
@public
For some reason we were manually JSON-encoding the RCTDataManager responses, and then decoding them again on the JS side. Since all data sent over the bridge is JSON-encoded anyway, this is pretty pointless.
Test Plan:
* Test Movies app in OSS, which uses RCTDataManager
* Test any code that uses RKHTTPQueryGenericExecutor to make network requests (e.g. Groups)
* Test the Groups photo upload feature, which uses RKHTTPQueryWithImageUploadExecutor