Kaushik Iska f9648fe057 Revert Versions API (flutter/engine#7828)
* Revert "Fix versions implementation (#7726)"

This reverts commit 82b3db052387161a8eed5f98f08080f1a60b7dfb.

* Revert "Expose the Flutter engine, Dart and Skia versions to Dart. (#7634)"

This reverts commit ec6f6c35b36548a2cf745c0a4b3cb8e5b6ee0e72.

* remove namespace shell stuff

* fix format

* fix licenses
2019-04-12 14:23:13 -07:00
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