Delete unused code

Code cleanup: deletes input_type.rs, output_type.rs and weight.rs which
are no longer needed.

payjoin/src/lib.rs

@@ -35,8 +35,6 @@ pub use v2::OhttpKeys;
 #[cfg(feature = "io")]
 pub mod io;
 
-#[cfg(any(feature = "send", feature = "receive"))]
-pub(crate) mod input_type;
 #[cfg(any(feature = "send", feature = "receive"))]
 pub(crate) mod psbt;
 #[cfg(any(feature = "send", all(feature = "receive", feature = "v2")))]
@@ -45,8 +43,6 @@ mod request;
 pub use request::*;
 
 mod uri;
-#[cfg(any(feature = "send", feature = "receive"))]
-pub(crate) mod weight;
 
 #[cfg(feature = "base64")]
 pub use bitcoin::base64;

payjoin/src/psbt.rs

@@ -39,7 +39,6 @@ pub(crate) trait PsbtExt: Sized {
     /// thing for outputs.
     fn validate(self) -> Result<Self, InconsistentPsbt>;
     fn validate_input_utxos(&self, treat_missing_as_error: bool) -> Result<(), PsbtInputsError>;
-    fn calculate_fee(&self) -> bitcoin::Amount;
 }
 
 impl PsbtExt for Psbt {
@@ -91,22 +90,6 @@ impl PsbtExt for Psbt {
                 .map_err(|error| PsbtInputsError { index, error })
         })
     }
-
-    fn calculate_fee(&self) -> bitcoin::Amount {
-        let mut total_outputs = bitcoin::Amount::ZERO;
-        let mut total_inputs = bitcoin::Amount::ZERO;
-
-        for output in &self.unsigned_tx.output {
-            total_outputs += output.value;
-        }
-
-        for input in self.input_pairs() {
-            total_inputs += input.previous_txout().unwrap().value;
-        }
-        log::debug!("  total_inputs:  {}", total_inputs);
-        log::debug!("- total_outputs: {}", total_outputs);
-        total_inputs - total_outputs
-    }
 }
 
 /// Gets redeemScript from the script_sig following BIP16 rules regarding P2SH spending.