TUI: GC tui_target_has_run

Nothing actually uses this global.

gdb/ChangeLog:
2016-04-12  Pedro Alves  <palves@redhat.com>

	* tui/tui-hooks.c (tui_target_has_run): Delete.
	(tui_about_to_proceed): Delete.
	(tui_about_to_proceed_observer): Delete.
	(tui_install_hooks, tui_remove_hooks): Don't install/remove an
	about_to_proceed observer.

2 files changed, 8 insertions, 24 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index b576b27461e..de8c4502eaf 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
 2016-04-12  Pedro Alves  <palves@redhat.com>
 
+	* tui/tui-hooks.c (tui_target_has_run): Delete.
+	(tui_about_to_proceed): Delete.
+	(tui_about_to_proceed_observer): Delete.
+	(tui_install_hooks, tui_remove_hooks): Don't install/remove an
+	about_to_proceed observer.
+
+2016-04-12  Pedro Alves  <palves@redhat.com>
+
 	* mi/mi-interp.c (mi_new_thread): Put
 	target_terminal_ours_for_output in effect while outputting.
 	(mi_thread_exit): Use target_terminal_ours_for_output instead of
diff --git a/gdb/tui/tui-hooks.c b/gdb/tui/tui-hooks.c
index bfe7aeb9bc1..5a03b617205 100644
--- a/gdb/tui/tui-hooks.c
+++ b/gdb/tui/tui-hooks.c
@@ -54,8 +54,6 @@
    "gdb_curses.h".  */
 #include "readline/readline.h"
 
-int tui_target_has_run = 0;
-
 static void
 tui_new_objfile_hook (struct objfile* objfile)
 {
@@ -109,23 +107,6 @@ tui_event_modify_breakpoint (struct breakpoint *b)
   tui_update_all_breakpoint_info ();
 }
 
-/* Called when a command is about to proceed the inferior.  */
-
-static void
-tui_about_to_proceed (void)
-{
-  /* Leave tui mode (optional).  */
-#if 0
-  if (tui_active)
-    {
-      target_terminal_ours ();
-      endwin ();
-      target_terminal_inferior ();
-    }
-#endif
-  tui_target_has_run = 1;
-}
-
 /* Refresh TUI's frame and register information.  This is a hook intended to be
    used to update the screen after potential frame and register changes.
 
@@ -230,7 +211,6 @@ static struct observer *tui_bp_created_observer;
 static struct observer *tui_bp_deleted_observer;
 static struct observer *tui_bp_modified_observer;
 static struct observer *tui_inferior_exit_observer;
-static struct observer *tui_about_to_proceed_observer;
 static struct observer *tui_before_prompt_observer;
 static struct observer *tui_normal_stop_observer;
 static struct observer *tui_register_changed_observer;
@@ -255,8 +235,6 @@ tui_install_hooks (void)
     = observer_attach_breakpoint_modified (tui_event_modify_breakpoint);
   tui_inferior_exit_observer
     = observer_attach_inferior_exit (tui_inferior_exit);
-  tui_about_to_proceed_observer
-    = observer_attach_about_to_proceed (tui_about_to_proceed);
   tui_before_prompt_observer
     = observer_attach_before_prompt (tui_before_prompt);
   tui_normal_stop_observer
@@ -280,8 +258,6 @@ tui_remove_hooks (void)
   tui_bp_modified_observer = NULL;
   observer_detach_inferior_exit (tui_inferior_exit_observer);
   tui_inferior_exit_observer = NULL;
-  observer_detach_about_to_proceed (tui_about_to_proceed_observer);
-  tui_about_to_proceed_observer = NULL;
   observer_detach_before_prompt (tui_before_prompt_observer);
   tui_before_prompt_observer = NULL;
   observer_detach_normal_stop (tui_normal_stop_observer);