[C++][Plasma] Fix inconsistent comment style #24245
Description
The comments in the plasma are a mixture of '@params' and '\params'. The reviewers required me to unify the style when I was trying to add windows support. I think it would be better to address it using a different PR.
Reporter: Siyuan Zhuang / @suquark
Assignee: Siyuan Zhuang / @suquark
PRs and other links:
Note: This issue was originally created as ARROW-8030. Please see the migration documentation for further details.