Remove note about range scan ops

README.md

@@ -22,18 +22,6 @@ This is the main program, hosting the webapp over axum.
 The engine reads stdin and sends line-split messages to a log ingester.
 The log ingester holds a BTreeMap<IndexKey, DataValue>.
 
-The BTreeMap may be a custom variation of the std library one, because we need to be able to scan specific ranges and jump to keys.
-```
-/// Get the given key, or the next key in the btree
-fn get_or_next(&self, key: &K) -> Option<Entry<K, V>>{...} 
-
-/// Get the next key in the btree
-fn get_or_next(&self, key: &K) -> Option<Entry<K, V>>{...} 
-
-/// Get the previous key in the btree
-fn previous(&self, key: &K) -> Option<Entry<K, V>> {...}
-```
-
 IndexKey is how we will index the logs and metrics required for search and dashboards.
 ```
 enum IndexKey {