Removed unneeded workloads

Removed unneeded workloads
Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
(cherry picked from commit 18a79fb8252d9ceee7162e8f774ab6bf806484c5)

Conflicts:

	suites/ceph-deploy/fs/tasks/cfuse_workunit_suites_dbench.yaml
	suites/ceph-deploy/fs/tasks/cfuse_workunit_suites_fsstress.yaml
	suites/ceph-deploy/rados/tasks/rados_python.yaml
	suites/ceph-deploy/rados/tasks/rados_workunit_loadgen_big.yaml
	suites/ceph-deploy/rbd/tasks/rbd_api_tests_old_format.yaml
	suites/ceph-deploy/rbd/tasks/rbd_cli_tests.yaml
	suites/ceph-deploy/rbd/tasks/rbd_cls_test.yaml

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>