[ISSUE #4381] Fix missing HOST header delete operation

[iwangjie]

FIX #4381 missing HOST header delete operation

Make sure that:

• You have read the contribution guidelines.
• You submit test cases (unit or integration tests) that back your changes.
• Your local test passed ./mvnw clean install -Dmaven.javadoc.skip=true.

[codecov-commenter]

Codecov Report

Merging #4425 (3750d8f) into master (bf7820f) will decrease coverage by 0.01%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##             master    #4425      +/-   ##
============================================
- Coverage     68.01%   68.01%   -0.01%     
- Complexity     7534     7535       +1     
============================================
  Files          1026     1026              
  Lines         29099    29100       +1     
  Branches       2611     2611              
============================================
- Hits          19793    19791       -2     
  Misses         7748     7748              
- Partials       1558     1561       +3     

Impacted Files	Coverage Δ
...yu/plugin/httpclient/AbstractHttpClientPlugin.java	40.84% <100.00%> (+0.84%)	⬆️
...yu/sync/data/http/refresh/AbstractDataRefresh.java	68.96% <0.00%> (-13.80%)	⬇️
...che/shenyu/sync/data/http/HttpSyncDataService.java	81.63% <0.00%> (-8.17%)	⬇️
...henyu/common/cache/MemorySafeWindowTinyLFUMap.java	73.33% <0.00%> (ø)
...henyu/admin/service/impl/UpstreamCheckService.java	66.66% <0.00%> (+0.57%)	⬆️
...henyu/plugin/grpc/resolver/ShenyuNameResolver.java	60.63% <0.00%> (+4.25%)	⬆️
...ruptor/RegisterClientServerDisruptorPublisher.java	66.66% <0.00%> (+11.11%)	⬆️
...controller/ShenyuClientHttpRegistryController.java	81.81% <0.00%> (+18.18%)	⬆️

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