Removed the BuildParams::proof_generation_key function because its su…

…perceded by the ExtendedKey trait. Removed BuildParams::auth_sig because signatures can be modified after the build using the MapAuth trait.

masp_primitives/src/transaction/components/sapling/builder.rs

@@ -52,10 +52,6 @@ pub trait BuildParams {
     fn spend_rcv(&mut self, i: usize) -> jubjub::Fr;
     /// Get the spend authorization randomizer for the ith spend description
     fn spend_alpha(&mut self, i: usize) -> jubjub::Fr;
-    /// Get the authorization signature for the ith spend description
-    fn auth_sig(&mut self, i: usize) -> Option<Signature>;
-    /// The proof generation key for the ith spend description
-    fn proof_generation_key(&mut self, i: usize) -> Option<ProofGenerationKey>;
     /// Get the commitment value randomness for the ith convert description
     fn convert_rcv(&mut self, i: usize) -> jubjub::Fr;
     /// Get the commitment value randomness for the ith output description
@@ -74,12 +70,6 @@ impl<B: BuildParams + ?Sized> BuildParams for Box<B> {
     fn spend_alpha(&mut self, i: usize) -> jubjub::Fr {
         (**self).spend_alpha(i)
     }
-    fn auth_sig(&mut self, i: usize) -> Option<Signature> {
-        (**self).auth_sig(i)
-    }
-    fn proof_generation_key(&mut self, i: usize) -> Option<ProofGenerationKey> {
-        (**self).proof_generation_key(i)
-    }
     fn convert_rcv(&mut self, i: usize) -> jubjub::Fr {
         (**self).convert_rcv(i)
     }
@@ -292,14 +282,6 @@ impl BuildParams for StoredBuildParams {
         self.spend_params[i].alpha
     }
 
-    fn auth_sig(&mut self, i: usize) -> Option<Signature> {
-        self.spend_params[i].auth_sig
-    }
-
-    fn proof_generation_key(&mut self, i: usize) -> Option<ProofGenerationKey> {
-        self.spend_params[i].proof_generation_key.clone()
-    }
-
     fn convert_rcv(&mut self, i: usize) -> jubjub::Fr {
         self.convert_params[i].rcv
     }
@@ -402,14 +384,6 @@ impl<R: CryptoRng + RngCore> BuildParams for RngBuildParams<R> {
         self.spend_params(i).alpha
     }
 
-    fn auth_sig(&mut self, i: usize) -> Option<Signature> {
-        self.spend_params(i).auth_sig
-    }
-
-    fn proof_generation_key(&mut self, i: usize) -> Option<ProofGenerationKey> {
-        self.spend_params(i).proof_generation_key.clone()
-    }
-
     fn convert_rcv(&mut self, i: usize) -> jubjub::Fr {
         self.convert_params(i).rcv
     }