erts: Remove ERTS_SMP and USE_THREAD defines

This refactor was done using the unifdef tool like this:
    for file in $(find erts/ -name *.[ch]); do unifdef -t -f defile -o $file $file; done

where defile contained:
    #define ERTS_SMP 1
    #define USE_THREADS 1
    #define DDLL_SMP 1
    #define ERTS_HAVE_SMP_EMU 1
    #define SMP 1
    #define ERL_BITS_REENTRANT 1
    #define ERTS_USE_ASYNC_READY_Q 1
    #define FDBLOCK 1
    #undef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
    #define ERTS_POLL_ASYNC_INTERRUPT_SUPPORT 0
    #define ERTS_POLL_USE_WAKEUP_PIPE 1
    #define ERTS_POLL_USE_UPDATE_REQUESTS_QUEUE 1
    #undef ERTS_HAVE_PLAIN_EMU
    #undef ERTS_SIGNAL_STATE

1 files changed, 0 insertions, 18 deletions

diff --git a/erts/emulator/beam/erl_async.h b/erts/emulator/beam/erl_async.h
index 4b470e7679..76fc61b560 100644
--- a/erts/emulator/beam/erl_async.h
+++ b/erts/emulator/beam/erl_async.h
@@ -28,38 +28,20 @@ extern int erts_async_max_threads;
 extern int erts_async_thread_suggested_stack_size;
 
 
-#ifdef ERTS_SMP
 /*
  * With smp support we can choose to have, or not to
  * have an async ready queue.
  */
 #define ERTS_USE_ASYNC_READY_Q 1
-#endif
 
-#ifndef ERTS_SMP
-/* In non-smp case we *need* the async ready queue */
-#  undef ERTS_USE_ASYNC_READY_Q
-#  define ERTS_USE_ASYNC_READY_Q 1
-#endif
 
-#ifndef ERTS_USE_ASYNC_READY_Q
-#  define ERTS_USE_ASYNC_READY_Q 0
-#endif
 
-#ifndef USE_THREADS
-#  undef ERTS_USE_ASYNC_READY_Q
-#  define ERTS_USE_ASYNC_READY_Q 0
-#endif /* !USE_THREADS */
-#if ERTS_USE_ASYNC_READY_Q
 int erts_check_async_ready(void *);
 int erts_async_ready_clean(void *, void *);
 void *erts_get_async_ready_queue(Uint sched_id);
 #define ERTS_ASYNC_READY_CLEAN 0
 #define ERTS_ASYNC_READY_DIRTY 1
-#ifdef ERTS_SMP
 #define ERTS_ASYNC_READY_NEED_THR_PRGR 2
-#endif
-#endif /* ERTS_USE_ASYNC_READY_Q */
 
 void erts_init_async(void);
 void erts_exit_flush_async(void);