mmrnmhrm: Remove USB gadget support from kconf.

Gives a compile error in -rc1 and I really don't need it, so let's
remove it.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
gajim: Update to v0.16-rc2.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
nixpkgs/config: Set allowBroken to true.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>