opt: help information &remove duplicate function cmds / 准确的帮助信息，删除重复功能命令

[diwufeiwen]

关联的Issues (Related Issues)

close filecoin-project/venus#5284

改动 (Proposed Changes)

附注 (Additional Info)

自查清单 (Checklist)

在你认为本 PR 满足被审阅的标准之前，需要确保 / Before you mark the PR ready for review, please make sure that:

• 符合Venus项目管理规范中关于PR的相关标准 / The PR follows the PR standards set out in the Venus project management guidelines
• 具有清晰明确的commit message / All commits have a clear commit message.
• 包含相关的的测试用例或者不需要新增测试用例 / This PR has tests for new functionality or change in behaviour or not need to add new tests.
• 包含相关的的指南以及文档或者不需要新增文档 / This PR has updated usage guidelines and documentation or not need
• 通过必要的检查项 / All checks are green

[codecov-commenter]

Codecov Report

Merging #104 (903bc35) into master (19c87b9) will increase coverage by 0.08%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #104      +/-   ##
==========================================
+ Coverage   13.09%   13.18%   +0.08%     
==========================================
  Files          46       46              
  Lines        3963     3936      -27     
==========================================
  Hits          519      519              
+ Misses       3355     3328      -27     
  Partials       89       89              

Flag	Coverage Δ
unittests	13.18% <0.00%> (+0.08%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cli/auth.go	0.00% <0.00%> (ø)
cli/wallet.go	0.00% <ø> (ø)
cli/wallet_event.go	0.00% <ø> (ø)

[zl03jsj]