[gtk+] GtkTreeModel: Remove erroneous transfer annotation

[Timm Bäder <baedert src gnome org>]

commit d86ec52547add225568aaf7e0b8501b21197ce41
Author: Timm Bäder <mail baedert org>
Date:   Thu Dec 3 18:27:47 2015 +0100

    GtkTreeModel: Remove erroneous transfer annotation

 gtk/gtktreemodel.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtktreemodel.c b/gtk/gtktreemodel.c
index bb8daed..d919f58 100644
--- a/gtk/gtktreemodel.c
+++ b/gtk/gtktreemodel.c
@@ -1222,7 +1222,7 @@ gtk_tree_model_get_n_columns (GtkTreeModel *tree_model)
  *
  * Returns the type of the column.
  *
- * Returns: (transfer none): the type of the column
+ * Returns: the type of the column
  */
 GType
 gtk_tree_model_get_column_type (GtkTreeModel *tree_model,