Pages links

This is what i found in my style.css file.

/*Navigation*/
.navigation {
overflow: hidden;
font-size:1.4em;
clear:both;
}
.navigation .alignleft a,
.navigation .alignright a{
display:block;
width:auto;
height:32px;
margin:0 20px
}
.wp-pagenavi {
text-align:center;
margin:8px 0;
padding:8px;
clear: both;
}

.wp-pagenavi a, .wp-pagenavi span {
text-decoration: none;
padding: 3px 5px;
margin: 2px;
}

.wp-pagenavi span.current {
font-weight: bold;
}

/*/Navigation*/

What do i have to modifie to remove previous and next page link?