Review Request 20131: Fix KAFKA-1353: incorporate Jun's comment round two

[Guozhang Wang]

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Review request for kafka.


Bugs: KAFKA-1353
    https://issues.apache.org/jira/browse/KAFKA-1353


Repository: kafka


Description
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Remove unused imports


KAFKA-1353.v3


KAFKA-1353.v2


KAFKA-1353.v1


Diffs
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  core/src/main/scala/kafka/network/RequestChannel.scala 
a6ec970d72fc8adc56bc6e200d1ff5bbf0d2b748 
  core/src/main/scala/kafka/network/SocketServer.scala 
dcfca3f4156957b0006ba9bfdeca848c115825a8 
  core/src/main/scala/kafka/server/KafkaRequestHandler.scala 
871212bf9110ca95ca7d2109be070f69d0f90247 

Diff: https://reviews.apache.org/r/20131/diff/


Testing
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Thanks,

Guozhang Wang