Remove defragment requests from linearization

[serathius]

Fix for linearization timeout caused by failed defragment requests.

Example how the defragments stack.

From
https://linuxfoundation.antithesis.com/report/SHIcYpK9cyKdVFDU10GSGGRD/HGbTf98umxtShk-fH9tJtH9rwf8kzzQ77DPq22EerrI.html?auth=v2.public.eyJuYmYiOiIyMDI1LTA2LTExVDAxOjA5OjI5LjExODM2NTc4NFoiLCJzY29wZSI6eyJSZXBvcnRTY29wZVYxIjp7ImFzc2V0IjoiSEdiVGY5OHVteHRTaGstZkg5dEp0SDlyd2Y4a3p6UTc3RFBxMjJFZXJySS5odG1sIiwicmVwb3J0X2lkIjoiU0hJY1lwSzljeUtkVkZEVTEwR1NHR1JEIn19fYokWt-Mm3fC2XHetmWPmvZYyw2cd-3iLxm2bDcLo51Mk_b1Q8OcCmgoWAa86IzuHYBAAwC8inaLuLRWVJPVOQY

/cc @joshjms @nwnt @henrybear327 @fuweid @siyuanfoundation

[k8s-ci-robot]

@serathius: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-etcd-govulncheck	dcaddc6	link	true	/test pull-etcd-govulncheck

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.28%. Comparing base (f6d6111) to head (dcaddc6).
Report is 8 commits behind head on main.

Additional details and impacted files

see 21 files with indirect coverage changes

@@            Coverage Diff             @@
##             main   #20161      +/-   ##
==========================================
+ Coverage   69.26%   69.28%   +0.01%     
==========================================
  Files         413      413              
  Lines       34364    34364              
==========================================
+ Hits        23803    23809       +6     
- Misses       9162     9163       +1     
+ Partials     1399     1392       -7     

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fuweid, serathius

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