IMPALA-6951: Revert "Warn about Hadoop / Java version incompatibility"
IMPALA-6951: Revert "Warn about Hadoop / Java version incompatibility"

This reverts commit 22c7ded07eb2710aba3e1aa07ed7ec1a448f7c61.

Change-Id: I41a9afb1a1bc9be1cae687edc06ca3b554a32c7b
Reviewed-on: http://gerrit.cloudera.org:8080/10238
Reviewed-by: Philip Zeyliger <3ba3974e96044dcde818e6310ed799abe10671d4@cloudera.com>
Tested-by: Michael Brown <97e4d5d0e400e5ad37382425ea95bde8b3933403@cloudera.com>

cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala,cloudera/Impala