To delete the VocALign Project Pro Tools plug-in
For Pro Tools 10 and earlier, open the Pro Tools Plug-Ins folder, which is
/Library/Application Support/DigiDesign/Plug-Ins
and delete the file VocALignASX.dpm
For Pro Tools 11 and later, open the folder
/Library/Application Support/Avid/Audio/Plug-Ins/
and delete the file VocALignProject.aaxplugin