Remove single prices from bundled product

Hi,
we need to remove single product prices from bundled products in SevenSpikes OnePageCheckout article visualization.

Bundle: Brochure istituzionale [+€6,20]
Bundle: Brochure consulenza [+€4,70]
Bundle: Brochure Plus [+€4,60]
Bundle: Penna Fineco [+€5,10]
Bundle: Block notes [+€3,50]
Bundle: Shopper Standard [+€3,80]
Codice evento: CCXX99774

Must become

Bundle: Brochure istituzionale
Bundle: Brochure consulenza
Bundle: Brochure Plus
Bundle: Penna Fineco
Bundle: Block notes
Bundle: Shopper Standard
Codice evento: CCXX99774

How to achieve this? It's possibile without modifying the core?

Thanks

Any update?