Delete *.gnome-photos files with XML depicting an empty GEGL graph
This is a continuation of #87 (closed)
Now that the GEGL graph is serialized into XML in user-visible locations, it might be nicer to completely remove the file when all edits have been discarded instead of leaving behind a file with the following contents:
<?xml version='1.0' encoding='UTF-8'?>
<gegl>
</gegl>
Edited by Debarshi Ray