refactor: drop hexrange

Signed-off-by: Greg Heartsfield <scsibug@imap.cc>

Author: v0l

src/hexrange.rs

@@ -6,7 +6,6 @@ pub mod db;
 pub mod delegation;
 pub mod error;
 pub mod event;
-pub mod hexrange;
 pub mod info;
 pub mod nauthz;
 pub mod nip05;