dconf: Remove recipe that exists in meta-gnome
dconf: Remove recipe that exists in meta-gnome

As of morty the recipe is available in the meta-openembedded/meta-gnome layer.

thenor/meta-bistro,GordanM/meta-bistro,frznlogic/meta-bistro,socec/meta-bistro,Pelagicore/meta-bistro,Pelagicore/meta-bistro,Pelagicore/meta-bistro,thenor/meta-bistro,Pelagicore/meta-bistro,frznlogic/meta-bistro,Pelagicore/meta-bistro,thenor/meta-bistro,thenor/meta-bistro,frznlogic/meta-bistro,thenor/meta-bistro,socec/meta-bistro,GordanM/meta-bistro,socec/meta-bistro,socec/meta-bistro,thenor/meta-bistro,Pelagicore/meta-bistro,GordanM/meta-bistro,frznlogic/meta-bistro