Removed the shuffle id in CoGroupedRDD initialization based on Spark's latest change.
Removed the shuffle id in CoGroupedRDD initialization based on Spark's
latest change.

mattyb149/blinkdb,sjyk/sampleclean,mapr/shark,sameeragarwal/blinkdb,mattyb149/blinkdb,sameeragarwal/blinkdb,lzshlzsh/shark,lzshlzsh/shark,amplab/shark,mapr/shark,amplab/shark,lzshlzsh/shark,vax11780/shark,sameeragarwal/blinkdb_dev,alabid/blinkdb,sameeragarwal/blinkdb_dev,alabid/blinkdb,sameeragarwal/blinkdb,alabid/blinkdb,vax11780/shark,sameeragarwal/blinkdb_dev,vax11780/shark,sjyk/sampleclean,mapr/shark,mattyb149/blinkdb,amplab/shark,sjyk/sampleclean