Hello,
sorry, I had to move this to the Cubase 7 → General, as it is not an Issue Report and not about Cubase Pro 8.
If you don’t need HALionOne, you can move or delete these files / folders:
OS X HD → Library → Application Support → Steinberg ->VST2 → HALionOne.vst
OS X HD → Library → Audio → Presets → Steinberg Media Technologies → HALionOne
[Edit: the VSTbridge is activated only when a bridged plug-in is loaded]
Kind regards,