clean up TODOs

src/service/reqrep.rs

@@ -179,8 +179,6 @@ impl ReqProtocol {
                 );
 
             if reply.has_error() {
-                // TODO return error status code instead of None
-                // this is temporary
                 handle_error(reply.get_error());
                 return Ok(None);
             }

src/wallet/cashierdb.rs

@@ -461,8 +461,6 @@ mod tests {
     use ff::Field;
     use rand::rngs::OsRng;
 
-    // TODO add more tests
-
     pub fn init_db(path: &PathBuf, password: String) -> Result<()> {
         if !password.trim().is_empty() {
             let contents = include_str!("../../sql/cashier.sql");