refactor(live): refactor the Live domain resource code style

[ruwenqiang123]

What this PR does / why we need it:

Refactor the Live domain resource code style

Which issue this PR fixes:
(optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged)
fixes #xxx

Special notes for your reviewer:

Release note:

PR Checklist

• Tests added/passed.

$ make testacc TEST="./huaweicloud/services/acceptance/live" TESTARGS="-run TestAccResourceDomain_basic"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/live -v -run TestAccResourceDomain_basic -timeout 360m -parallel 4
=== RUN   TestAccResourceDomain_basic
--- PASS: TestAccResourceDomain_basic (347.22s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/live      347.308s

$ make testacc TEST="./huaweicloud/services/acceptance/live" TESTARGS="-run TestAccResourceDomain_streamDomain"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/live -v -run TestAccResourceDomain_streamDomain -timeout 360m -parallel 4
=== RUN   TestAccResourceDomain_streamDomain
--- PASS: TestAccResourceDomain_streamDomain (580.18s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/live      580.257s

• Documentation updated.

• Schema updated.

• CheckDeleted.

  • a. During query operation (Read Context)
    aa. Resource not found
    >>>>>> Paste the screenshot here <<<<<<
    
  • b. During delete/disassociate/unbind operation (Delete Context)
    ba. Resource not found
    >>>>>> Paste the screenshot here <<<<<<
    

[Alice1319]

LGTM

[ruwenqiang123]

$ make testacc TEST="./huaweicloud/services/acceptance/live" TESTARGS="-run TestAccResourceDomain_streamDomain"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/live -v -run TestAccResourceDomain_streamDomain -timeout 360m -parallel 4
=== RUN   TestAccResourceDomain_streamDomain
--- PASS: TestAccResourceDomain_streamDomain (402.82s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/live      402.866s

[ruwenqiang123]

$ make testacc TEST="./huaweicloud/services/acceptance/live" TESTARGS="-run TestAccResourceDomain_streamDomain"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/live -v -run TestAccResourceDomain_streamDomain -timeout 360m -parallel 4
=== RUN   TestAccResourceDomain_streamDomain
--- PASS: TestAccResourceDomain_streamDomain (313.39s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/live      313.442s

[ruwenqiang123]

$ make testacc TEST="./huaweicloud/services/acceptance/live" TESTARGS="-run TestAccResourceDomain_basic"
==> Checking that code complies with gofmt requirements...
TF_ACC=1 go test ./huaweicloud/services/acceptance/live -v -run TestAccResourceDomain_basic -timeout 360m -parallel 4
=== RUN   TestAccResourceDomain_basic
--- PASS: TestAccResourceDomain_basic (362.78s)
PASS
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/live      362.834s

[deer-hang]

/approve
/lgtm

[github-ci-robot]

This PR has been approved by: @deer-hang

/approve
/lgtm