Remove unused code

src/map.rs

@@ -1,77 +0,0 @@
-use bitcoin::{BlockHash, BlockHeader};
-
-use std::collections::HashMap;
-
-#[derive(Default)]
-struct Chain {
-    by_height: Vec<BlockHash>,
-}
-
-impl Chain {
-    fn build(tip: BlockHash, by_hash: &HashMap<BlockHash, BlockHeader>) -> Self {
-        // verify full chain till genesis
-        let mut by_height = vec![];
-        let mut blockhash = tip;
-        while blockhash != BlockHash::default() {
-            by_height.push(blockhash);
-            blockhash = match by_hash.get(&blockhash) {
-                Some(header) => header.prev_blockhash,
-                None => panic!("missing block header: {}", blockhash),
-            };
-        }
-        by_height.reverse();
-        Self { by_height }
-    }
-
-    fn len(&self) -> usize {
-        self.by_height.len()
-    }
-
-    fn tip(&self) -> Option<&BlockHash> {
-        self.by_height.last()
-    }
-}
-
-#[derive(Default)]
-pub struct BlockMap {
-    by_hash: HashMap<BlockHash, BlockHeader>,
-    chain: Chain,
-}
-
-impl BlockMap {
-    pub(crate) fn new(headers: Vec<BlockHeader>) -> Self {
-        let mut map = Self::default();
-        map.add_headers(headers);
-        map
-    }
-
-    pub fn chain(&self) -> &[BlockHash] {
-        &self.chain.by_height
-    }
-
-    /// May return stale headers
-    pub fn get_header(&self, hash: &BlockHash) -> Option<&BlockHeader> {
-        self.by_hash.get(hash)
-    }
-
-    fn add_headers(&mut self, headers: Vec<BlockHeader>) {
-        let total_blocks = headers.len();
-        let mut new_blocks = 0usize;
-        for header in headers {
-            let hash = header.block_hash();
-            self.by_hash.entry(hash).or_insert_with(|| {
-                new_blocks += 1;
-                header
-            });
-        }
-        debug!("added {}/{} headers", new_blocks, total_blocks,);
-    }
-
-    pub fn update(&mut self, tip: BlockHash, headers: Vec<BlockHeader>) {
-        self.add_headers(headers);
-        let chain = Chain::build(tip, &self.by_hash);
-        assert_eq!(chain.tip(), Some(&tip));
-        info!("verified {} headers, tip={}", chain.len(), tip);
-        self.chain = chain;
-    }
-}