I had this same problem and solved it by hiding it with this CSS
#breadcrumbs span:nth-child(2) a {
display:none;
}
I wanted my sites breadcrumbs to flow like:
Home > Businesses > Restaurants > Greasy Joes
But my theme (Geocraft) pulled up a surprise and gave me:
Home > Business Listings > Businesses > Restaurants > Greasy Joes
Since “Business Listings” is 2nd in the list, this CSS looks within the “#breadcrumbs” tag then in the “spans” then the second child in the list “(2)” and finally the link “a” and I made it hidden.
Worked well for me. Yoast WordPress SEO 1.5.2.7