Put this in the Custom CSS area in Vamtam/General:
.services .thumbnail img {
border: 0;
padding: 0;
border-radius: 0;
}
.services .thumbnail a.has-border {
padding-bottom: 0;
}
.services .thumbnail a.has-border:before,
.services .thumbnail a.has-border:after {
display: none;
}