To uninstall or delete the VocALign Pro plug-in from Pro Tools
For Pro Tools 10 and earlier, open the Pro Tools Plug-Ins folder which is
Macintosh HD/Library/Application Support/Digidesign/Plug-Ins
and delete the file VocALignPro.dpm
For Pro Tools 11 and later, open the folder
Macintosh HD/Library/Application Support/Avid/Audio/Plug-Ins/
and delete the file VocALignPro.aaxplugin