diff --git a/src/dd.rs b/src/dd.rs
deleted file mode 100644
index aeec73f..0000000
--- a/src/dd.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-pub trait Database {
-    type View;
-    type WriteBatch;
-}
-
-pub trait BonsaiDbStrategy {
-    type DB: Database;
-    fn get_node(&self, path: &BitSlice, db_view: &Self::DB::View) -> Result<Node>;
-    fn write_to_batch(&self, modifications: MerkleTree<Self>, db_write: &mut Self::DB::WriteBatch) -> Result<()>;
-}
-
-pub struct GlobalTrie<DBStrategy: BonsaiDbStrategy> {
-    prefix_len: usize,
-    strategy: DBStrategy,
-}
-
-impl<DBStrategy: BonsaiDbStrategy> GlobalTrie<DBStrategy> {
-    pub fn get_tree_at(&self, db: &DBStrategy::DB::View, prefix: &BitSlice) -> MerkleTree<DBStrategy>;
-}
-
-pub trait DBForLayeredState: Database {
-    type Instance;
-    pub fn new_instance(&self, at_version: u64) -> Result<Self::Instance>;
-    pub fn get_closest(&self, iter: &mut Self::Instance, key: &[u8]) -> Result<ByteVec>;
-    pub fn delete_range(&self, iter: &mut Self::Instance, write_to: &mut Self::WriteBatch, prefix: &[u8]) -> Result<()>;
-}
-
-pub struct LayeredStateStrategy<DB: DBForLayeredState> {
-
-}
-
-impl<DB: DBForLayeredState> BonsaiDbStrategy for DBForLayeredState<DB> {
-    type DB = DB;
-    fn get_node(&self, path: &BitSlice, db_view: &Self::DB::View) -> Result<Node> {
-        todo!()
-    }
-
-    fn write_to_batch(&self, modifications: MerkleTree<Self>, db_write: &mut Self::DB::WriteBatch) -> Result<()> {
-        todo!()
-    }
-}
\ No newline at end of file