Reviewed and removed the xxx fix-me comments.

screen-write.c

@@ -1990,7 +1990,6 @@ screen_write_pane_obscured(struct window_pane *base_wp)
 		return(0);
 	w = base_wp->window;
 
-	/* Check if there is a floating pane. xxxx borders? scrollbars? */
 	TAILQ_FOREACH_REVERSE(wp, &w->z_index, window_panes_zindex, zentry) {
 		if (wp == base_wp) {
 			found_self = 1;

tty-draw.c

@@ -122,7 +122,7 @@ tty_draw_line(struct tty *tty, struct screen *s, u_int px, u_int py, u_int nx,
 	char			 buf[1000];
 	size_t			 len;
 	enum tty_draw_line_state current_state, next_state;
-/* xxx maybe check overlay here? */
+
 	/*
 	 * py is the line in the screen to draw. px is the start x and nx is
 	 * the width to draw. atx,aty is the line on the terminal to draw it.

tty.c

@@ -1556,7 +1556,7 @@ tty_set_client_cb(struct tty_ctx *ttyctx, struct client *c)
 	ttyctx->bigger = tty_window_offset(&c->tty, &ttyctx->wox, &ttyctx->woy,
 	    &ttyctx->wsx, &ttyctx->wsy);
 
-	ttyctx->yoff = ttyctx->ryoff = wp->yoff;  /* xxxx find another way to do this */
+	ttyctx->yoff = ttyctx->ryoff = wp->yoff;
 	if (status_at_line(c) == 0)
 		ttyctx->yoff += status_line_size(c);
 
@@ -1584,7 +1584,7 @@ tty_draw_images(struct client *c, struct window_pane *wp, struct screen *s)
 		ttyctx.sy = wp->sy;
 
 		ttyctx.ptr = im;
-		ttyctx.arg = wp;  /* xxx remove this */
+		ttyctx.arg = wp;
 		ttyctx.set_client_cb = tty_set_client_cb;
 		ttyctx.allow_invisible_panes = 1;
 		tty_write_one(tty_cmd_sixelimage, c, &ttyctx);
@@ -2081,7 +2081,6 @@ tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
 		return;
 
 	if (ctx->num == 2) {
-		/* xxxx need to check visible range */
 		tty_draw_line(tty, s, 0, s->cy, screen_size_x(s),
 		    ctx->xoff - ctx->wox, py, &ctx->defaults, ctx->palette);
 		return;