gaaclarke ebb4e8ac18 Revert "Surrogate binary messenger (#9347)" (flutter/engine#9375)
This reverts commit 002159e772f4f6e136ce2b7608a2234e95060a09.

This was crashing the integration test `- (void)testDualFlutterView`.
2019-06-19 12:29:08 -07:00
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