To uninstall the plugins, delete the plugin files from the specified folders on Windows (e.g., C:\Program Files\Steinberg\VstPlugins) or Mac (e.g., /Library/Audio/Plug-Ins/VST3). Also, remove files from any custom VST folder if used. Move the plugin files to the Trash to complete uninstallation.
To uninstall our plugins, you will need to delete the plugin file from their folders:
Windows
C:\Program Files\Steinberg\VstPlugins
C:\Program Files\Common Files\VST3\
C:\Program Files\Common Files\Avid\Audio\Plug-Ins
C:\Program Files\Common Files\Digidesign\DAE\Plug-Ins
Mac
/Library/Application Support/Avid/Audio/Plug-Ins
/Library/Application Support/Digidesign/Plug-Ins
/Library/Audio/Plug-Ins/Components
/Library/Audio/Plug-Ins/VST3
/Library/Audio/Plug-Ins/VST
In each folder, find the plugin you want to uninstall and move it to the Trash.
(Note: if you are using a custom VST folder, you will also need to trash the plugin files from that location.)