Update AnnotationBean.java delete duplicate code

[Sidneyxt]

delete useless code

What is the purpose of the change

delete useless code

Brief changelog

XXXXX

duplicate code

Verifying this change

XXXXX

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[codecov-io]

Codecov Report

Merging #3021 into master will increase coverage by 0.08%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3021      +/-   ##
==========================================
+ Coverage   64.24%   64.33%   +0.08%     
==========================================
  Files         584      584              
  Lines       26056    26056              
  Branches     4562     4562              
==========================================
+ Hits        16740    16762      +22     
+ Misses       7132     7111      -21     
+ Partials     2184     2183       -1

Impacted Files	Coverage Δ
.../remoting/transport/netty4/NettyClientHandler.java	75% <0%> (-11.12%)	⬇️
...in/java/org/apache/dubbo/common/utils/JVMUtil.java	73.58% <0%> (-7.55%)	⬇️
...he/dubbo/remoting/transport/netty/NettyServer.java	67.85% <0%> (-3.58%)	⬇️
...org/apache/dubbo/rpc/protocol/AbstractInvoker.java	62.9% <0%> (-3.23%)	⬇️
...a/org/apache/dubbo/monitor/dubbo/DubboMonitor.java	87.85% <0%> (-1.87%)	⬇️
...he/dubbo/registry/multicast/MulticastRegistry.java	63.79% <0%> (-1.73%)	⬇️
...pache/dubbo/registry/support/AbstractRegistry.java	80.82% <0%> (-0.38%)	⬇️
.../java/org/apache/dubbo/config/ReferenceConfig.java	56.39% <0%> (+0.37%)	⬆️
...dubbo/remoting/exchange/support/DefaultFuture.java	68.45% <0%> (+0.67%)	⬆️
...apache/dubbo/rpc/protocol/dubbo/DubboProtocol.java	66.66% <0%> (+0.83%)	⬆️
... and 9 more

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[lixiaojiee]

That's what it looks like

[Sidneyxt]

I don't quite understand.

[khanimteyaz]

Looks good to me.

[zonghaishang]

AnnotationBean is deprecated, never should be used again.