Bug#967742: depends on unmaintained gtkmm2.4, and indirectly on GTK 2

[Bastian Germann]

Control: severity -1 serious

I am raising the severity on some of the Multimedia Team's packages
(audio plugins mostly) that depend on gtkmm2.4. It should really not be
released with trixie. Are there any good reasons to keep them in Debian?

Please also see my comment on GTKMM2 support at #967719.
When these packages are gone, there is no reason to keep that support.