[gnome-software] trivial: Fix tiny warning spotted with clang

[Richard Hughes <rhughes src gnome org>]

commit 89061464e7d3116e28b9cb4bef84b54679dbc863
Author: Richard Hughes <richard hughsie com>
Date:   Wed Feb 17 11:55:01 2016 +0000

    trivial: Fix tiny warning spotted with clang

 src/gs-hiding-box.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/gs-hiding-box.c b/src/gs-hiding-box.c
index 0500a3f..0822be4 100644
--- a/src/gs-hiding-box.c
+++ b/src/gs-hiding-box.c
@@ -273,7 +273,7 @@ gs_hiding_box_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
                clip.x = clip.y = 0;
        }
 
-       for (i = 0, child = box->children; child != NULL; child = child->next) {
+       for (child = box->children; child != NULL; child = child->next) {
                child_widget = GTK_WIDGET (child->data);
                if (gtk_widget_get_visible (child_widget) &&
                    gtk_widget_get_child_visible (child_widget)) {