Remove immediate_quit.

The old code that sets and clears immediate_quit was
ineffective except when Emacs is running in terminal mode, and
has problematic race conditions anyway, so remove it.  This
will introduce some hangs when Emacs runs in terminal mode,
and these hangs should be fixed in followup patches.
* src/keyboard.c (immediate_quit): Remove.  All uses removed.

1 files changed, 0 insertions, 2 deletions

diff --git a/src/eval.c b/src/eval.c
index 62d4af15e27..844879d6a2d 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1131,7 +1131,6 @@ unwind_to_catch (struct handler *catch, Lisp_Object value)
   /* Restore certain special C variables.  */
   set_poll_suppress_count (catch->poll_suppress_count);
   unblock_input_to (catch->interrupt_input_blocked);
-  immediate_quit = false;
 
   do
     {
@@ -1517,7 +1516,6 @@ signal_or_quit (Lisp_Object error_symbol, Lisp_Object data, bool keyboard_quit)
   Lisp_Object clause = Qnil;
   struct handler *h;
 
-  immediate_quit = false;
   if (gc_in_progress || waiting_for_input)
     emacs_abort ();