Remove CustomizedLoaderClassPath.java

[AlbumenJ]

What is the purpose of the change

Brief changelog

Verifying this change

Checklist

• Make sure there is a GitHub_issue field for the change (usually before you start working on it). Trivial changes like typos do not require a GitHub issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
• Each commit in the pull request should have a meaningful subject line and body.
• Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
• Check if is necessary to patch to Dubbo 3 if you are work on Dubbo 2.7
• Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add sample in dubbo samples project.
• Add some description to dubbo-website project if you are requesting to add a feature.
• GitHub Actions works fine on your own branch.
• If this contribution is large, please follow the Software Donation Guide.

[codecov-commenter]

Codecov Report

Merging #9105 (e5167ca) into 3.0 (81f240e) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##                3.0    #9105   +/-   ##
=========================================
  Coverage     64.75%   64.76%           
- Complexity      325      326    +1     
=========================================
  Files          1177     1176    -1     
  Lines         50723    50690   -33     
  Branches       7550     7540   -10     
=========================================
- Hits          32848    32829   -19     
+ Misses        14314    14307    -7     
+ Partials       3561     3554    -7     

Impacted Files	Coverage Δ
...g/apache/dubbo/common/bytecode/ClassGenerator.java	62.63% <100.00%> (+0.20%)	⬆️
...java/org/apache/dubbo/common/bytecode/Wrapper.java	82.67% <100.00%> (+0.08%)	⬆️
...dubbo/remoting/exchange/support/DefaultFuture.java	88.03% <0.00%> (-5.13%)	⬇️
...bbo/common/resource/GlobalResourcesRepository.java	77.08% <0.00%> (-2.09%)	⬇️
...etadata/report/support/AbstractMetadataReport.java	65.56% <0.00%> (-1.89%)	⬇️
...ting/zookeeper/curator/CuratorZookeeperClient.java	70.67% <0.00%> (-0.97%)	⬇️
...rg/apache/dubbo/common/timer/HashedWheelTimer.java	85.22% <0.00%> (-0.69%)	⬇️
...ubbo/config/deploy/DefaultApplicationDeployer.java	75.67% <0.00%> (-0.20%)	⬇️
...he/dubbo/remoting/transport/netty/NettyServer.java	73.68% <0.00%> (+3.50%)	⬆️
...ubbo/rpc/protocol/tri/ServerTransportObserver.java	70.21% <0.00%> (+4.25%)	⬆️
... and 3 more

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[CrazyHZM]

LGTM