[libgfbgraph] photo: Remove using g_print for debugging

[Leesoo Ahn <yisooan src gnome org>]

commit 5925221e3f46b269b34f49762c4e90ad52827699
Author: Leesoo Ahn <yisooan fedoraproject org>
Date:   Fri Jun 28 21:15:43 2019 +0900

    photo: Remove using g_print for debugging
    
    g_print should be against to print debugging messages from within libraries
    as its comment says.
    
    https://developer.gnome.org/glib/stable/glib-Warnings-and-Assertions.html#g-print

 gfbgraph/gfbgraph-photo.c | 2 --
 1 file changed, 2 deletions(-)
---
diff --git a/gfbgraph/gfbgraph-photo.c b/gfbgraph/gfbgraph-photo.c
index 1e8955c..69eb98d 100644
--- a/gfbgraph/gfbgraph-photo.c
+++ b/gfbgraph/gfbgraph-photo.c
@@ -292,8 +292,6 @@ gfbgraph_photo_serializable_serialize_property (JsonSerializable *serializable,
 {
         JsonNode *node = NULL;
 
-        g_print ("Serializing %s\n", property_name);
-
         if (g_strcmp0 ("images", property_name) == 0) {
         } else {
                 node = json_serializable_default_serialize_property (serializable, property_name, value, 
pspec);