cleanup: adjust log print content when delete token by karmadactl

[chaosi-zju]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

cleanup: adjust log print content when delete token by karmadactl.

These logs are misleading for users and security scanning tools, and can easily be mistaken for sensitive information such as printing tokenID.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.35%. Comparing base (41aef43) to head (52cd771).

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4956      +/-   ##
==========================================
+ Coverage   53.34%   53.35%   +0.01%     
==========================================
  Files         252      252              
  Lines       20478    20478              
==========================================
+ Hits        10923    10926       +3     
+ Misses       8833     8831       -2     
+ Partials      722      721       -1     

Flag	Coverage Δ
unittests	53.35% <100.00%> (+0.01%)	⬆️

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[RainbowMango]

cc @zhzhuang-zju to take a look

[zhzhuang-zju]

/assign

[chaosi-zju]

CC @RainbowMango

[RainbowMango]

@zhzhuang-zju Do you have any further comments?

@chaosi-zju we need to wait #4966

[zhzhuang-zju]

/lgtm

[zhzhuang-zju]

cc @RainbowMango

[chaosi-zju]

I have rebased #4966.

[RainbowMango]

/lgtm
/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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