Remove annotaions when pp/cpp is deleted

[zhzhuang-zju]

What type of PR is this? /kind cleanup

What this PR does / why we need it: Remove annotaions when pp/cpp is deleted Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 53.07%. Comparing base (80ee3b2) to head (4842566).

Files	Patch %	Lines
pkg/detector/detector.go	0.00%	2 Missing :warning:

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4561      +/-   ##
==========================================
- Coverage   53.08%   53.07%   -0.01%     
==========================================
  Files         251      251              
  Lines       20387    20387              
==========================================
- Hits        10822    10821       -1     
- Misses       8852     8853       +1     
  Partials      713      713              

Flag	Coverage Δ
unittests	53.07% <0.00%> (-0.01%)	:arrow_down:

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[zhzhuang-zju]

cc @Vacant2333 @XiShanYongYe-Chang

[Vacant2333]

@zhzhuang-zju i will help u to review after the ci pass~~~

[XiShanYongYe-Chang]

Thanks a lot /assign

[zhzhuang-zju]

since https://github.com/karmada-io/karmada/pull/4743 has been merged, so this pr changes to add some related e2e scenarios @XiShanYongYe-Chang @Vacant2333

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango, XiShanYongYe-Chang

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