[at-spi2-atk] Remove unused function

[Emmanuele Bassi <ebassi src gnome org>]

commit 8c3c862888caf88626f1b0dea9c40236e015024e
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Apr 27 11:22:46 2018 +0100

    Remove unused function
    
    Avoid a compiler warning.

 atk-adaptor/event.c |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/atk-adaptor/event.c b/atk-adaptor/event.c
index b539646..f9697ae 100644
--- a/atk-adaptor/event.c
+++ b/atk-adaptor/event.c
@@ -451,14 +451,6 @@ adapt_minor_for_dbus (const char *source)
   return ret;
 }
 
-static void
-open_variant (DBusMessageIter *iter, const char *name, const char *type,
-              DBusMessageIter *out)
-{
-  dbus_message_iter_append_basic (iter, DBUS_TYPE_STRING, &name);
-  dbus_message_iter_open_container (iter, DBUS_TYPE_VARIANT, type, out);
-}
-
 /*
  * Emits an AT-SPI event.
  * AT-SPI events names are split into three parts: