Remove getBrokerClusterAclConfig from admin and server

[RongtongJin]

Which Issue(s) This PR Fixes

Fixes #issue_id

Brief Description

How Did You Test This Change?

[onejimmyboy]

Why delete this method? How to obtain ACL configuration through the interface after deletion

[codecov-commenter]

Codecov Report

Merging #7486 (f77e4b6) into develop (f0f15b5) will increase coverage by 0.05%.
Report is 4 commits behind head on develop.
The diff coverage is 0.00%.

@@              Coverage Diff              @@
##             develop    #7486      +/-   ##
=============================================
+ Coverage      42.93%   42.99%   +0.05%     
- Complexity      9660     9664       +4     
=============================================
  Files           1161     1158       -3     
  Lines          83930    83858      -72     
  Branches       10898    10889       -9     
=============================================
+ Hits           36038    36053      +15     
+ Misses         43410    43334      -76     
+ Partials        4482     4471      -11     

Files	Coverage Δ
...ocketmq/broker/processor/AdminBrokerProcessor.java	23.78% <ø> (+0.19%)	⬆️
...g/apache/rocketmq/client/impl/MQClientAPIImpl.java	22.90% <ø> (-0.37%)	⬇️
...apache/rocketmq/remoting/protocol/RequestCode.java	0.00% <ø> (ø)
...apache/rocketmq/tools/admin/DefaultMQAdminExt.java	29.12% <ø> (+0.15%)	⬆️
...he/rocketmq/tools/admin/DefaultMQAdminExtImpl.java	24.94% <ø> (+0.02%)	⬆️
.../apache/rocketmq/tools/command/MQAdminStartup.java	0.00% <ø> (ø)
...che/rocketmq/acl/plain/PlainPermissionManager.java	78.37% <0.00%> (ø)

... and 20 files with indirect coverage changes

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[joeCarf]

LGTM

[RongtongJin]

Why delete this method? How to obtain ACL configuration through the interface after deletion

Suggested to check on the corresponding broker machine

[onejimmyboy]

Why delete this method? How to obtain ACL configuration through the interface after deletion

Suggested to check on the corresponding broker machine

Yes, this is indeed possible. But I want to know, what are the reasons for doing this? Why delete it? thanks

[GenerousMan]

LGTM

[caigy]

Should we reserve the request code to avoid duplication in the future?

[caigy]

LGTM