Add following function in your functions.php file.
function custom_post_link($format, $link, $in_same_cat = false, $excluded_categories="", $previous = true) {
if ( $previous && is_attachment() )
$post = & get_post($GLOBALS['post']->post_parent);
else
$post = get_adjacent_post($in_same_cat, $excluded_categories, $previous);
if ( !$post )
return;
$link = get_permalink($post);
$format = str_replace('%link', $link, $format);
$adjacent = $previous ? 'previous' : 'next';
echo apply_filters( "{$adjacent}_post_link", $format, $link );
}
and instead of calling previous_post_link(‘%link’,”,TRUE ) function call it as custom_post_link(‘%link’,”,TRUE ) and it will output the path as following
http://www.website.com/photo/1085