fix: simplify map_or_else

Author: hstove

stacks-signer/src/cli.rs

@@ -270,7 +270,7 @@ fn parse_contract(contract: &str) -> Result<QualifiedContractIdentifier, String>
 pub fn parse_pox_addr(pox_address_literal: &str) -> Result<PoxAddress, String> {
     let parsed_addr = PoxAddress::from_b58(pox_address_literal).map_or_else(
         || Err(format!("Invalid pox address: {pox_address_literal}")),
-        |pox_address| Ok(pox_address),
+        Ok,
     );
     match parsed_addr {
         Ok(PoxAddress::Standard(addr, None)) => match addr.version {