MB-12537: The Python library for Apache CouchDB is no longer needed

All scripts the previously used the Python library for Apache CouchDB
got removed from testrunner. It's no longer needed.

Change-Id: I957c9f0dc0c18f7f628ae5cfb92d958fb2b59885
Reviewed-on: http://review.couchbase.org/42850
Tested-by: Volker Mische <volker.mische@gmail.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>
MB-12537: Rename all config files to *.conf

Some configuration files were named *.py. That might confuse tools that
expect all *.py to contain valud Python source code.

Change-Id: Ifa5d1c6f9311894c5f311d121fecb99cd9b2dcd0
Reviewed-on: http://review.couchbase.org/42785
Tested-by: buildbot <build@couchbase.com>
Reviewed-by: Ketaki Gangal <ketakigangal@gmail.com>