Remove dead line of code (rebase mistake)

Author: lukewagner

design/mvp/CanonicalABI.md

@@ -3912,7 +3912,6 @@ all future use of this stream end. Lastly, `stream_event` packs the
     assert(buffer.progress <= Buffer.MAX_LENGTH < 2**28)
     packed_result = result | (buffer.progress << 4)
     return (event_code, i, packed_result)
-    return (event_code, i, pack_stream_result(result, buffer))
 
   def on_copy(reclaim_buffer):
     e.set_event(partial(stream_event, CopyResult.COMPLETED, reclaim_buffer))

design/mvp/canonical-abi/definitions.py

@@ -2281,7 +2281,6 @@ def stream_event(result, reclaim_buffer):
     assert(buffer.progress <= Buffer.MAX_LENGTH < 2**28)
     packed_result = result | (buffer.progress << 4)
     return (event_code, i, packed_result)
-    return (event_code, i, pack_stream_result(result, buffer))
 
   def on_copy(reclaim_buffer):
     e.set_event(partial(stream_event, CopyResult.COMPLETED, reclaim_buffer))