bugfix: schema point to a response object

[zhuangqh]

Signed-off-by: zhuangqh [email protected]

Ⅰ. Describe what this PR did

Schema should not point to a response object, or we will fail to generate model in latest version of go-swagger.

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how you did it

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[codecov-io]

Codecov Report

Merging #1712 into master will decrease coverage by 3.4%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1712      +/-   ##
==========================================
- Coverage   41.16%   37.76%   -3.41%     
==========================================
  Files         274      274              
  Lines       18089    19662    +1573     
==========================================
- Hits         7447     7425      -22     
- Misses       9729    11323    +1594     
- Partials      913      914       +1

Impacted Files	Coverage Δ
daemon/mgr/snapshot.go	0% <0%> (-33.34%)	⬇️
ctrd/container.go	33.25% <0%> (-15.55%)	⬇️
daemon/mgr/container.go	34.97% <0%> (-15.26%)	⬇️
ctrd/image.go	65.43% <0%> (-12.04%)	⬇️
ctrd/client_opts.go	38.09% <0%> (-11.91%)	⬇️
cri/v1alpha2/cri_utils.go	18.06% <0%> (-6.51%)	⬇️
cri/v1alpha1/cri_utils.go	17.52% <0%> (-6.37%)	⬇️
ctrd/image_proxy_util.go	7.81% <0%> (-1.57%)	⬇️
cli/network.go	0% <0%> (ø)	⬆️
cli/common_flags.go	0% <0%> (ø)	⬆️
... and 5 more