Remove RefreshedAt from TextWidget

This attribute is used for absolutely nothing. It doesn't need to exist.

clocks/widget.go

@@ -32,7 +32,6 @@ func NewWidget(app *tview.Application) *Widget {
 /* -------------------- Exported Functions -------------------- */
 
 func (widget *Widget) Refresh() {
-	widget.UpdateRefreshedAt()
 	widget.display(widget.clockColl.Sorted(), widget.dateFormat, widget.timeFormat)
 }