Go into your plugin folders and delete it.
The folders for plugins on OSX are listed below…
- Macintosh HD:/Library/Audio/Plug-Ins/Components/ (AU)
- Macintosh HD:/Library/Audio/Plug-Ins/VST/ (VST)
- Macintosh HD:/Library/Audio/Plug-Ins/VST3/ (VST3)
Certain plug-ins may install themselves to the <user> folder. This folder is hidden by default, here's how to access hidden folders.
- Macintosh HD:/Users/[Your Username]/Library/Audio/Plug-Ins/Components/ (AU)
- Macintosh HD:/Users/[Your Username]/Library/Audio/Plug-Ins/VST/ (VST)