Irish Ferries don't sail from Fishguard

Update this text as Irish Ferries doesn't sail from Fishguard:

> From Dublin and Rosslare, Irish Ferries and Stena Line Limited ferries operate to Holyhead and Fishguard in Wales. Ferry connections from [Stena Line Limited](https://www.fipguide.org/en/operator/sll/) can be used at a discount with Stena Line FIP Coupons or FIP 50 Tickets.