[gtk-vnc] src: remove use of obsolete thread APIs

[Daniel P. Berrange <dberrange src gnome org>]

commit c7942ba5499a0d51c7dc5486f5cde157511c97dd
Author: Daniel P. Berrangé <dan berrange com>
Date:   Thu Jan 7 13:06:02 2021 +0000

    src: remove use of obsolete thread APIs
    
    Threading is always initialized from glib 2.32 onwards
    
    Signed-off-by: Daniel P. Berrangé <berrange redhat com>

 src/coroutine_gthread.c | 6 ------
 1 file changed, 6 deletions(-)
---
diff --git a/src/coroutine_gthread.c b/src/coroutine_gthread.c
index 2fe56ba..e94023c 100644
--- a/src/coroutine_gthread.c
+++ b/src/coroutine_gthread.c
@@ -37,12 +37,6 @@ static struct coroutine leader;
 
 static void coroutine_system_init(void)
 {
-    if (!g_thread_supported()) {
-        CO_DEBUG("INIT");
-        g_thread_init(NULL);
-    }
-
-
     run_cond = g_cond_new();
     run_lock = g_mutex_new();
     CO_DEBUG("LOCK");