remove duplicate code

[foreveryang321]

What is the purpose of the change

remove duplicate code

Brief changelog

XXXXX

Verifying this change

XXXXX

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[codecov-io]

Codecov Report

Merging #3807 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #3807      +/-   ##
============================================
- Coverage      63.6%   63.59%   -0.01%     
  Complexity       71       71              
============================================
  Files           704      704              
  Lines         31065    31065              
  Branches       5037     5037              
============================================
- Hits          19759    19757       -2     
+ Misses         9034     9033       -1     
- Partials       2272     2275       +3

Impacted Files	Coverage Δ	Complexity Δ
...ache/dubbo/remoting/p2p/support/AbstractGroup.java	45.45% <0%> (-11.37%)	0% <0%> (ø)
.../apache/dubbo/remoting/transport/AbstractPeer.java	63.04% <0%> (-4.35%)	0% <0%> (ø)
...he/dubbo/registry/multicast/MulticastRegistry.java	67.87% <0%> (-1.81%)	0% <0%> (ø)
...pache/dubbo/registry/support/AbstractRegistry.java	80.7% <0%> (+1.18%)	0% <0%> (ø)	⬇️
...dubbo/remoting/exchange/support/DefaultFuture.java	75.51% <0%> (+2.04%)	0% <0%> (ø)	⬇️
...ng/exchange/support/header/HeartbeatTimerTask.java	78.94% <0%> (+5.26%)	0% <0%> (ø)	⬇️
...apache/dubbo/common/config/ConfigurationUtils.java	72% <0%> (+8%)	0% <0%> (ø)	⬇️

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[ralf0131]

LGTM, thanks for the pull request.