[gnome-online-accounts] provider: Remove redundant cast

[Debarshi Ray <debarshir src gnome org>]

commit fb8d6baf20a07b8031d733f93ec1182396335cd8
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Apr 28 16:49:52 2016 +0200

    provider: Remove redundant cast

 src/goabackend/goaprovider.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/goabackend/goaprovider.c b/src/goabackend/goaprovider.c
index a07376e..6b82735 100644
--- a/src/goabackend/goaprovider.c
+++ b/src/goabackend/goaprovider.c
@@ -707,7 +707,7 @@ goa_provider_ensure_credentials (GoaProvider          *self,
   g_return_if_fail (GOA_IS_OBJECT (object));
   g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
 
-  task = g_task_new (G_OBJECT (self),
+  task = g_task_new (self,
                      cancellable,
                      callback,
                      user_data);