Remove unused interface

src/terminal.go

@@ -1539,20 +1539,16 @@ func (t *Terminal) resizeWindows(forcePreview bool, redrawBorder bool) {
 
 	t.prevLines = make([]itemLine, screenHeight)
 	if t.border != nil && redrawBorder {
-		t.border.Close()
 		t.border = nil
 	}
 	if t.window != nil {
-		t.window.Close()
 		t.window = nil
 	}
 	if t.pborder != nil {
-		t.pborder.Close()
 		t.pborder = nil
 	}
 	hadPreviewWindow := t.hasPreviewWindow()
 	if hadPreviewWindow {
-		t.pwindow.Close()
 		t.pwindow = nil
 	}
 	// Reset preview version so that full redraw occurs

src/tui/light.go

@@ -935,9 +935,6 @@ func (w *LightWindow) Height() int {
 func (w *LightWindow) Refresh() {
 }
 
-func (w *LightWindow) Close() {
-}
-
 func (w *LightWindow) X() int {
 	return w.posx
 }

src/tui/tcell.go

@@ -555,10 +555,6 @@ func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int,
 	return w
 }
 
-func (w *TcellWindow) Close() {
-	// TODO
-}
-
 func fill(x, y, w, h int, n ColorPair, r rune) {
 	for ly := 0; ly <= h; ly++ {
 		for lx := 0; lx <= w; lx++ {

src/tui/tui.go

@@ -559,7 +559,6 @@ type Window interface {
 	DrawHBorder()
 	Refresh()
 	FinishFill()
-	Close()
 
 	X() int
 	Y() int