Fix: delete dubbo-cli, update triple version

[LaurenceLiZhixin]

What this PR does:

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[codecov-commenter]

Codecov Report

Merging #1259 (35e1d2e) into 3.0 (968650f) will decrease coverage by 3.88%.
The diff coverage is 50.52%.

@@            Coverage Diff             @@
##              3.0    #1259      +/-   ##
==========================================
- Coverage   59.53%   55.65%   -3.89%     
==========================================
  Files         259      273      +14     
  Lines       12737    12826      +89     
==========================================
- Hits         7583     7138     -445     
- Misses       4199     4783     +584     
+ Partials      955      905      -50     

Impacted Files	Coverage Δ
cluster/cluster_impl/available_cluster_invoker.go	66.66% <ø> (ø)
cluster/cluster_impl/broadcast_cluster_invoker.go	76.47% <ø> (ø)
cluster/cluster_impl/failfast_cluster_invoker.go	66.66% <ø> (ø)
cluster/cluster_impl/mock_cluster.go	0.00% <0.00%> (ø)
cluster/loadbalance/random.go	100.00% <ø> (ø)
...router/v3router/judger/list_string_match_judger.go	0.00% <0.00%> (ø)
...ster/router/v3router/judger/method_match_judger.go	0.00% <0.00%> (ø)
...er/router/v3router/judger/url_label_match_judge.go	0.00% <0.00%> (ø)
common/extension/auth.go	0.00% <ø> (ø)
common/extension/cluster.go	0.00% <ø> (ø)
... and 282 more

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[zouyx]

Suggest send a discuss mail to dev@dubbo.apache.org , in order to all developers know why will not support this feature in dubbo-go 3.0.

[LaurenceLiZhixin]

Suggest send a discuss mail to dev@dubbo.apache.org , in order to all developers know why will not support this feature in dubbo-go 3.0.

由于近期要rc2发版，这次发版就先不删掉consul了，之后会尝试邮件投票的形式讨论。