Bug#996691: cogl, clutter-1.0: upstream project discontinued, should be removed

[Simon McVittie]

Control: severity -1 serious
Control: tags -1 = forky sid upstream wontfix

We released Debian 12 and 13 with the unmaintained cogl and clutter-1.0 
libraries, but I think it's time we finally remove them during the 
Debian 14 cycle.

clutter-gst-3.0, clutter-gtk and libchamplain are "larger" libraries 
that depend on clutter-1.0, so they will have to be removed at the same 
time (or perhaps earlier, if their reverse-dependencies allow).

Similarly ibus-clutter and clutter-imcontext will need to be removed at 
the same time as clutter-1.0; they would not be useful in its absence 
anyway.

     smcv