plugins and 0.8 to 1.2 upgrade

Hello,

I recently upgraded some servers from 0.8.8h (debian 9) to 1.2.2 (debian
10).

we use plugins like settings and rrdclean, which are built in since 1.0.0
and after upgease I see errors in "plugins" menu saying "Plugin directory is
missing".

Is there a way to remove obsolete plugins from cacti?
Should I remove them before upgrade?
or should I simply drop their named from the cacti database?

Thank you

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