gvfs-gdu-volume-monitor 1.8.2: remove conflicting files

 * check_data_file_clashes: Package gvfs-gdu-volume-monitor wants to install file /usr/share/glib-2.0/schemas/org.gnome.system.dns_sd.gschema.xml
        But that file is already provided by package  * gvfs
 * check_data_file_clashes: Package gvfs-gdu-volume-monitor wants to install file /usr/share/glib-2.0/schemas/org.gnome.system.gvfs.enums.xml
        But that file is already provided by package  * gvfs
 * check_data_file_clashes: Package gvfs-gdu-volume-monitor wants to install file /usr/share/GConf/gsettings/gvfs-dns-sd.convert
        But that file is already provided by package  * gvfs

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>