[release-1.9] renaming cleanup function in ci-build-azure-ccm.sh and ci-build-kubernetes.sh

[k8s-infra-cherrypick-robot]

This is an automated cherry-pick of #3686

/assign CecileRobertMichon

NONE

[codecov]

Codecov Report

Patch coverage: 90.76% and project coverage change: +0.09 🎉

Comparison is base (4ad8022) 52.71% compared to head (588a17e) 52.80%.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-1.9    #3692      +/-   ##
===============================================
+ Coverage        52.71%   52.80%   +0.09%     
===============================================
  Files              182      182              
  Lines            18201    18236      +35     
===============================================
+ Hits              9595     9630      +35     
+ Misses            8070     8068       -2     
- Partials           536      538       +2     

Impacted Files	Coverage Δ
azure/scope/machinepool.go	32.31% <0.00%> (ø)
azure/services/securitygroups/securitygroups.go	73.56% <85.71%> (+0.96%)	⬆️
azure/scope/cluster.go	57.62% <91.17%> (+1.24%)	⬆️
azure/scope/machine.go	50.71% <100.00%> (-0.41%)	⬇️
azure/services/securitygroups/spec.go	82.19% <100.00%> (+2.82%)	⬆️

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[mboersma]

/lgtm
/approve
/retest

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 7ee52794209f45ed587925b6f0344b530c0a67c2

[k8s-ci-robot]

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[mboersma]

/retest-required