Merge pull request #20187 from alalek:highgui_plugins_cleanup
authorAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 1 Jun 2021 13:16:23 +0000 (13:16 +0000)
committerAlexander Alekhin <alexander.a.alekhin@gmail.com>
Tue, 1 Jun 2021 13:16:23 +0000 (13:16 +0000)

Trivial merge