feat: clean the endpointslice if the current cluster is not in the mcs consumption clusters

[jwcesign]

What type of PR is this?
/kind feature

What this PR does / why we need it:
Firstly, member1 and member2 are in the consumption clusters set,
Then, the consumption clusters set changes to member1.
We should clean the endpointslice dispatched to member2 before.

Which issue(s) this PR fixes:
Fixes #none

Special notes for your reviewer:
none

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

Attention: 10 lines in your changes are missing coverage. Please review.

Comparison is base (64d0873) 51.81% compared to head (ffed3f3) 51.78%.
Report is 2 commits behind head on master.

Files	Patch %	Lines
pkg/util/helper/mcs.go	0.00%	10 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4343      +/-   ##
==========================================
- Coverage   51.81%   51.78%   -0.03%     
==========================================
  Files         243      243              
  Lines       24102    24112      +10     
==========================================
- Hits        12488    12486       -2     
- Misses      10933    10945      +12     
  Partials      681      681              

Flag	Coverage Δ
unittests	51.78% <0.00%> (-0.03%)	⬇️

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[RainbowMango]

/lgtm
/approve

[karmada-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: RainbowMango

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• pkg/controllers/OWNERS [RainbowMango]
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