desktop: Remove obsolete Bugzilla entries
The X-GNOME-Bugzilla-*
entries were for use by bug-buddy, a GNOME 2
technology that's been gone for over a decade. These entries are
obsolete and can be removed from all desktop files.
The X-GNOME-Settings-Panel
entry is also obsolete as far as I can
tell and only these panels had it in their desktop file: notifications,
sharing, sound and user-accounts. These entries can also be removed.
After removing the X-GNOME-Bugzilla-*
entries, the desktop files have
no more variables in them. The meson configure_file
step is therefor
pointless—there are no variables to configure. As such the
*.desktop.in.in
files are renamed to *.desktop.in
to reflect this
and meson.build
files are modified to remove configure_file
step.