chore: remove unused function

Author: obycode

stacks-signer/src/signerdb.rs

@@ -871,16 +871,6 @@ where
         .map_err(DBError::SerializationError)
 }
 
-#[cfg(test)]
-pub fn test_signer_db(db_path: &str) -> SignerDb {
-    use std::fs;
-
-    if fs::metadata(db_path).is_ok() {
-        fs::remove_file(db_path).unwrap();
-    }
-    SignerDb::new(db_path).expect("Failed to create signer db")
-}
-
 #[cfg(test)]
 mod tests {
     use std::fs;