Revert "Reinstate "nova/flavors: Rename & alias flavors to g/c/m scheme""
Revert "Reinstate "nova/flavors: Rename & alias flavors to g/c/m scheme""

This reverts commit 03e6574fb69f2f1fbb05841f97ab06ce4af7becf.

We need to update existing flavors without rolling this out.

sapcc/helm-charts,sapcc/helm-charts,sapcc/helm-charts,sapcc/helm-charts