Revert "Update dataproc/submit_job_to_cluster.py" (#1864)
Revert "Update dataproc/submit_job_to_cluster.py" (#1864)

* Revert "Remove test configs for non-testing directories (#1855)"

This reverts commit 73a73321579337312e8ba85c34fe9c37b42b7f6e.

* Revert "Auto-update dependencies. (#1846)"

This reverts commit df8e623681e68f95c4671eadbd0b15d699898530.

* Revert "Tweak slack sample (#1847)"

This reverts commit a48c010481c166968d9f1bd58106054c5d1c58f9.

* Revert "Non-client library example of constructing a Signed URL (#1837)"

This reverts commit fc3284d995a8a35c473a207e80490fad265782af.

* Revert "GCF samples: handle {empty JSON, GET} requests + remove commas (#1832)"

This reverts commit 6928491ed3d52b0bec694e6b30257f08caac5f2b.

* Revert "Correct the maintenance event types (#1830)"

This reverts commit c22840fd23586349b7b665d851dea046a94ba7c7.

* Revert "Fix GCF region tags (#1827)"

This reverts commit 0fbfef27d35cea23ad0e20fd2c9df3e8a4a046cb.

* Revert "Updated to Flask 1.0 (#1819)"

This reverts commit d52ccf99503311bba2cec2881e8cb0f9b5a6f2bf.

* Revert "Fix deprecation warning (#1801)"

This reverts commit 981737e85f60eca5cc337f172249deddca9b291b.

* Revert "Update submit_job_to_cluster.py (#1708)"

This reverts commit cdab25b3b7a973bd9de864920d5fa5a79dce379c.

GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples,GoogleCloudPlatform/python-docs-samples