Update decimal tests to only run on text/none.
Update decimal tests to only run on text/none.

Change-Id: I9a35f9e1687171fc3f06c17516bca2ea4b9af9e1
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2217
Tested-by: jenkins
Reviewed-by: Ishaan Joshi <d1d1e60202ec9f2503deb1b724986485a125d802@cloudera.com>
Reviewed-on: http://gerrit.ent.cloudera.com:8080/2431
Reviewed-by: Nong Li <99a5e5f8f5911755b88e0b536d46aafa102bed41@cloudera.com>

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