Remove never-set var handle_user_signal_hook

* src/keyboard.c, src/keyboard.h (handle_user_signal_hook):
Remove never-set var.  All uses removed.

1 files changed, 0 insertions, 5 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 3cddd4119dd..20aa2dbd389 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -7142,9 +7142,6 @@ struct user_signal_info
 /* List of user signals.  */
 static struct user_signal_info *user_signals = NULL;
 
-/* Function called when handling user signals.  */
-void (*handle_user_signal_hook) (int);
-
 void
 add_user_signal (int sig, const char *name)
 {
@@ -7193,8 +7190,6 @@ handle_user_signal (int sig)
           }
 
         p->npending++;
-        if (handle_user_signal_hook)
-          (*handle_user_signal_hook) (sig);
 #ifdef USABLE_SIGIO
         if (interrupt_input)
           handle_input_available_signal (sig);