[pushed] Remove unnecessary TUI declarations

[pushed] Remove unnecessary TUI declarations

[Tom Tromey]

I found some unnecessary declarations (and one unused macro) in the
TUI.  This patch removes them.

gdb/ChangeLog
2020-06-17  Tom Tromey  <tom@tromey.com>

	* tui/tui-win.h (tui_scroll_forward, tui_scroll_backward)
	(tui_scroll_left, tui_scroll_right, struct tui_win_info): Don't
	declare.
	* tui/tui-data.h (MIN_CMD_WIN_HEIGHT): Remove.
---
 gdb/ChangeLog      | 7 +++++++
 gdb/tui/tui-data.h | 1 -
 gdb/tui/tui-win.h  | 6 ------
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index abe77272291..1accf3683d4 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -132,7 +132,6 @@ struct tui_gen_win_info
 #define DISASSEM_NAME           "asm"
 #define STATUS_NAME		"status"
 #define MIN_WIN_HEIGHT          3
-#define MIN_CMD_WIN_HEIGHT      3
 
 /* Strings to display in the TUI status line.  */
 #define SINGLE_KEY              "(SingleKey)"
diff --git a/gdb/tui/tui-win.h b/gdb/tui/tui-win.h
index e3791846307..65ad8bf3483 100644
--- a/gdb/tui/tui-win.h
+++ b/gdb/tui/tui-win.h
@@ -24,12 +24,6 @@
 
 #include "tui/tui-data.h"
 
-struct tui_win_info;
-
-extern void tui_scroll_forward (struct tui_win_info *, int);
-extern void tui_scroll_backward (struct tui_win_info *, int);
-extern void tui_scroll_left (struct tui_win_info *, int);
-extern void tui_scroll_right (struct tui_win_info *, int);
 extern void tui_set_win_focus_to (struct tui_win_info *);
 extern void tui_resize_all (void);
 extern void tui_refresh_all_win (void);
-- 
2.17.2