dsn,drawing: remove mistakenly committed incomplete files

src/drawing/groups.rs

@@ -1,8 +0,0 @@
-use enum_dispatch::enum_dispatch;
-
-use super::graph::GeometryIndex;
-
-#[enum_dispatch]
-pub trait GetGroups< {
-    fn node_groups(&self, node: GeometryIndex) -> Vec<GeometryIndex>;
-}

src/dsn/groups.rs

@@ -1,14 +0,0 @@
-use petgraph::stable_graph::StableGraph;
-
-use crate::layout::{graph::GeometryIndex, groups::GetGroups};
-
-#[derive(Debug)]
-pub struct DsnGroups {
-    map: BTreeMap<
-}
-
-impl GetGroups for DsnGroups {
-    fn node_groups(&self, node: GeometryIndex) -> Vec<GroupIndex> {
-        //
-    }
-}