liuyamin e6d4b20656 [Api-ref] fix the type of service_id in worker cleanup api
According to [1], the type of service_id is int, so fix it.

[1]https://review.openstack.org/#/c/569036/

Change-Id: Ie142582a2a73564127be83c1e3531a07311b4153
2018-05-29 14:19:14 +08:00
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2017-11-13 16:25:20 -05:00