[gitg] Do not write index after revert

[Jesse van den Kieboom <jessevdk src gnome org>]

commit adeb31e85ce8e2efae61fb1cf7407191b9d41c4a
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Tue Jul 1 14:15:38 2014 +0200

    Do not write index after revert

 libgitg/gitg-stage.vala |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/libgitg/gitg-stage.vala b/libgitg/gitg-stage.vala
index 6dfb183..39d2a0a 100644
--- a/libgitg/gitg-stage.vala
+++ b/libgitg/gitg-stage.vala
@@ -533,8 +533,6 @@ public class Stage : Object
 
                        stream.write_all(blob.get_raw_content(), null);
                        stream.close();
-
-                       index.write();
                });
        }