nit: Remove old 'planner' comments

[t-kikuc]

What this PR does:

Removed Package planner provides a piped component... comments from pkg/plugin/.* files.

Why we need it:

They are not planner packages. (migrated from planner)

Which issue(s) this PR fixes:

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 26.27%. Comparing base (e0dfc18) to head (3af36ec).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5505      +/-   ##
==========================================
- Coverage   26.28%   26.27%   -0.01%     
==========================================
  Files         464      464              
  Lines       49624    49626       +2     
==========================================
- Hits        13043    13041       -2     
- Misses      35547    35552       +5     
+ Partials     1034     1033       -1     

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[khanhtc1202]

Nice catch 👍