TEC Widget Nav Span

/* This is the relevant CSS rule, however
 * it isn't hiding the link as we would
 * normally expect.
 */
.tribe-events-widget-nav a span {
        text-indent:-9999px;
        color: transparent;
        text-transform: capitalize;
}

/* Can you try amending it to the following?
 */
.tribe-events-widget-nav a span {
        display: none;
        text-indent:-9999px;
        color: transparent;
        text-transform: capitalize;
}