[glibmm] AsyncResult: Bin obsolete docs re: initing GThread

[Daniel Boles <dboles src gnome org>]

commit e1bb5c9d639ce06ccb23272fe6e69d6d83501905
Author: Daniel Boles <dboles src gnome org>
Date:   Sun May 20 16:16:05 2018 +0100

    AsyncResult: Bin obsolete docs re: initing GThread
    
    As the GLib Threads documentation states:
    
    “Since version 2.32, the GLib threading system is automatically
    initialized at the start of your program, and all thread-creation
    functions and synchronization primitives are available right away.”

 gio/src/asyncresult.hg |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/gio/src/asyncresult.hg b/gio/src/asyncresult.hg
index 9fa2e4b..5b73a55 100644
--- a/gio/src/asyncresult.hg
+++ b/gio/src/asyncresult.hg
@@ -94,9 +94,6 @@ using SlotAsyncReady = sigc::slot<void(Glib::RefPtr<AsyncResult>&)>;
  * The callback for an asynchronous operation is called only once, and is always called, even in the case of 
a cancelled operation.
  * On cancellation the result is a ERROR_CANCELLED error.
  *
- * Some ascynchronous operations are implemented using synchronous calls. These are run in a separate 
GThread, but otherwise they are sent
- * to the Main Event Loop and processed in an idle function. So, if you truly need asynchronous operations, 
make sure to initialize GThread.
- *
  * @newin{2,16}
  */
 class AsyncResult : public Glib::Interface