Don't display stack trace for error to delete namespace qos entry. #1573

Job	Run time
build	9m 0s
build	9m 0s
build-ceph	2m 33s
build-ceph	2m 33s
discovery (container)	4m 13s
discovery (container)	4m 13s
discovery (embedded)	3m 45s
discovery (embedded)	3m 45s
demo	4m 4s
demo	4m 4s
pytest (cli)	2m 9s
pytest (cli)	2m 9s
ha (sanity)	3m 56s
ha (sanity)	3m 56s
pytest (cli_change_lb)	2m 24s
pytest (cli_change_lb)	2m 24s
ha (state_transitions)	3m 57s
ha (state_transitions)	3m 57s
pytest (state)	2m 16s
pytest (state)	2m 20s
ha (state_transitions_both_gws)	4m 28s
ha (state_transitions_both_gws)	4m 28s
pytest (multi_gateway)	2m 16s
pytest (multi_gateway)	2m 16s
ha (state_transitions_loop)	11m 47s
ha (state_transitions_loop)	11m 47s
pytest (server)	2m 33s
pytest (server)	2m 33s
ha (state_transitions_rand_loop)	13m 57s
ha (state_transitions_rand_loop)	13m 57s
pytest (grpc)	2m 34s
pytest (grpc)	2m 34s
ha (late_registration)	3m 34s
ha (late_registration)	3m 34s
pytest (omap_lock)	3m 37s
pytest (omap_lock)	3m 37s
ha (late_registration_loop)	16m 23s
ha (late_registration_loop)	16m 23s
pytest (old_omap)	2m 22s
pytest (old_omap)	2m 22s
ha (4gws)	6m 30s
ha (4gws)	6m 30s
pytest (log_files)	3m 30s
pytest (log_files)	3m 30s
ha (4gws_loop)	6m 58s
ha (4gws_loop)	6m 58s
pytest (nsid)	3m 7s
pytest (nsid)	3m 7s
pytest (namespaces)	11m 39s
pytest (namespaces)	11m 39s
push-to-registry	0s
push-to-registry	0s
	4h 27m 8s

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