There is somewhere that WINDOW_HIDDEN is getting set when it shouldn't

be and I can't find it, but the flag itself is a useless optimisation
that only applies to automatic-resize windows, so just dispose of it
entirely.

Fixes problems reported by Nicholas Riley.

3 files changed, 4 insertions, 8 deletions

diff --git a/resize.c b/resize.c
index 15f99e7c..af84eaba 100644
--- a/resize.c
+++ b/resize.c
@@ -113,11 +113,8 @@ recalculate_sizes(void)
 					ssy = s->sy;
 			}
 		}
-		if (ssx == UINT_MAX || ssy == UINT_MAX) {
-			w->flags |= WINDOW_HIDDEN;
+		if (ssx == UINT_MAX || ssy == UINT_MAX)
 			continue;
-		}
-		w->flags &= ~WINDOW_HIDDEN;
 
 		limit = options_get_number(&w->options, "force-width");
 		if (limit != 0 && ssx > limit)
diff --git a/tmux.h b/tmux.h
index 0d37e554..e4323a5d 100644
--- a/tmux.h
+++ b/tmux.h
@@ -843,9 +843,8 @@ struct window {
 
 	int		 flags;
 #define WINDOW_BELL 0x1
-#define WINDOW_HIDDEN 0x2
-#define WINDOW_ACTIVITY 0x4
-#define WINDOW_REDRAW 0x8
+#define WINDOW_ACTIVITY 0x2
+#define WINDOW_REDRAW 0x4
 
 	struct options	 options;
 
diff --git a/tty.c b/tty.c
index 379fa42d..63f6127f 100644
--- a/tty.c
+++ b/tty.c
@@ -547,7 +547,7 @@ tty_write(void (*cmdfn)(
 
 	if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
 		return;
-	if (wp->window->flags & WINDOW_HIDDEN || !window_pane_visible(wp))
+	if (!window_pane_visible(wp))
 		return;
 
 	for (i = 0; i < ARRAY_LENGTH(&clients); i++) {