IMPALA-8346: Don't create FE testcase files unless testing locally
IMPALA-8346: Don't create FE testcase files unless testing locally

The same test data setup scripts get called when loading data for
mini-cluster testing and testing against a real deployed cluster.
Unfortunately, we're seeing more and more that not all set up steps
apply equally in both situations.

This patch avoids one such example. It skips the creation of TPCDS
testcase files that are used by the FE java tests. These tests don't
run against deployed clusters.

Change-Id: Ibe11d7cb50d9e2657152c94f8defcbc69ca7e1ba
Reviewed-on: http://gerrit.cloudera.org:8080/12958
Reviewed-by: Impala Public Jenkins <039b6b20426ff68ebe492b3021890d8c8fd010c9@cloudera.com>
Tested-by: Impala Public Jenkins <039b6b20426ff68ebe492b3021890d8c8fd010c9@cloudera.com>
Reviewed-on: https://gerrit.sjc.cloudera.com/c/cdh/impala/+/45022
Reviewed-by: David Knupp <6014aa7b8711b3b616d04da7c5083e463b5c51c9@cloudera.com>
API-Compat: David Knupp <6014aa7b8711b3b616d04da7c5083e463b5c51c9@cloudera.com>
CDH-Build: David Knupp <6014aa7b8711b3b616d04da7c5083e463b5c51c9@cloudera.com>
Quasar-L0: David Knupp <6014aa7b8711b3b616d04da7c5083e463b5c51c9@cloudera.com>
Tested-by: David Knupp <6014aa7b8711b3b616d04da7c5083e463b5c51c9@cloudera.com>

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