asset: delete cargo-culted fields in DenomMetadata

These were copied over from the bank.Metadata proto but:

- they're never used by any of our tooling
- searching the cosmos/chain-registry reveals they're never used in the rest of the ecosystem
- we can't parse the cosmos sdk data anyways, because it does bespoke field renaming

So no reason to keep it and definite reasons to remove it.

crates/core/asset/src/asset/denom_metadata.rs

@@ -43,8 +43,6 @@ pub(super) struct Inner {
     display_index: usize,
     name: String,
     symbol: String,
-    uri: String,
-    uri_hash: String,
 }
 
 impl DomainType for DenomMetadata {
@@ -59,8 +57,6 @@ impl From<&Inner> for pb::DenomMetadata {
             display: inner.units[inner.display_index].denom.clone(),
             name: inner.name.clone(),
             symbol: inner.symbol.clone(),
-            uri: inner.uri.clone(),
-            uri_hash: inner.uri_hash.clone(),
             penumbra_asset_id: Some(inner.id.into()),
             denom_units: inner.units.clone().into_iter().map(|x| x.into()).collect(),
         }
@@ -127,8 +123,6 @@ impl TryFrom<pb::DenomMetadata> for Inner {
             description: value.description,
             name: value.name,
             symbol: value.symbol,
-            uri: value.uri,
-            uri_hash: value.uri_hash,
         })
     }
 }
@@ -249,8 +243,6 @@ impl Inner {
             description: String::new(),
             name: String::new(),
             symbol: String::new(),
-            uri: String::new(),
-            uri_hash: String::new(),
         }
     }
 }

crates/proto/src/gen/penumbra.core.asset.v1alpha1.rs

@@ -79,13 +79,6 @@ pub struct DenomMetadata {
     /// be the same as the display.
     #[prost(string, tag = "6")]
     pub symbol: ::prost::alloc::string::String,
-    /// URI to a document (on or off-chain) that contains additional information. Optional.
-    #[prost(string, tag = "7")]
-    pub uri: ::prost::alloc::string::String,
-    /// URIHash is a sha256 hash of a document pointed by URI. It's used to verify that
-    /// the document didn't change. Optional.
-    #[prost(string, tag = "8")]
-    pub uri_hash: ::prost::alloc::string::String,
     /// the asset ID on Penumbra for this denomination.
     #[prost(message, optional, tag = "1984")]
     pub penumbra_asset_id: ::core::option::Option<AssetId>,

crates/proto/src/gen/penumbra.core.asset.v1alpha1.serde.rs

@@ -339,12 +339,6 @@ impl serde::Serialize for DenomMetadata {
         if !self.symbol.is_empty() {
             len += 1;
         }
-        if !self.uri.is_empty() {
-            len += 1;
-        }
-        if !self.uri_hash.is_empty() {
-            len += 1;
-        }
         if self.penumbra_asset_id.is_some() {
             len += 1;
         }
@@ -367,12 +361,6 @@ impl serde::Serialize for DenomMetadata {
         if !self.symbol.is_empty() {
             struct_ser.serialize_field("symbol", &self.symbol)?;
         }
-        if !self.uri.is_empty() {
-            struct_ser.serialize_field("uri", &self.uri)?;
-        }
-        if !self.uri_hash.is_empty() {
-            struct_ser.serialize_field("uriHash", &self.uri_hash)?;
-        }
         if let Some(v) = self.penumbra_asset_id.as_ref() {
             struct_ser.serialize_field("penumbraAssetId", v)?;
         }
@@ -393,9 +381,6 @@ impl<'de> serde::Deserialize<'de> for DenomMetadata {
             "display",
             "name",
             "symbol",
-            "uri",
-            "uri_hash",
-            "uriHash",
             "penumbra_asset_id",
             "penumbraAssetId",
         ];
@@ -408,8 +393,6 @@ impl<'de> serde::Deserialize<'de> for DenomMetadata {
             Display,
             Name,
             Symbol,
-            Uri,
-            UriHash,
             PenumbraAssetId,
         }
         impl<'de> serde::Deserialize<'de> for GeneratedField {
@@ -438,8 +421,6 @@ impl<'de> serde::Deserialize<'de> for DenomMetadata {
                             "display" => Ok(GeneratedField::Display),
                             "name" => Ok(GeneratedField::Name),
                             "symbol" => Ok(GeneratedField::Symbol),
-                            "uri" => Ok(GeneratedField::Uri),
-                            "uriHash" | "uri_hash" => Ok(GeneratedField::UriHash),
                             "penumbraAssetId" | "penumbra_asset_id" => Ok(GeneratedField::PenumbraAssetId),
                             _ => Err(serde::de::Error::unknown_field(value, FIELDS)),
                         }
@@ -466,8 +447,6 @@ impl<'de> serde::Deserialize<'de> for DenomMetadata {
                 let mut display__ = None;
                 let mut name__ = None;
                 let mut symbol__ = None;
-                let mut uri__ = None;
-                let mut uri_hash__ = None;
                 let mut penumbra_asset_id__ = None;
                 while let Some(k) = map_.next_key()? {
                     match k {
@@ -507,18 +486,6 @@ impl<'de> serde::Deserialize<'de> for DenomMetadata {
                             }
                             symbol__ = Some(map_.next_value()?);
                         }
-                        GeneratedField::Uri => {
-                            if uri__.is_some() {
-                                return Err(serde::de::Error::duplicate_field("uri"));
-                            }
-                            uri__ = Some(map_.next_value()?);
-                        }
-                        GeneratedField::UriHash => {
-                            if uri_hash__.is_some() {
-                                return Err(serde::de::Error::duplicate_field("uriHash"));
-                            }
-                            uri_hash__ = Some(map_.next_value()?);
-                        }
                         GeneratedField::PenumbraAssetId => {
                             if penumbra_asset_id__.is_some() {
                                 return Err(serde::de::Error::duplicate_field("penumbraAssetId"));
@@ -534,8 +501,6 @@ impl<'de> serde::Deserialize<'de> for DenomMetadata {
                     display: display__.unwrap_or_default(),
                     name: name__.unwrap_or_default(),
                     symbol: symbol__.unwrap_or_default(),
-                    uri: uri__.unwrap_or_default(),
-                    uri_hash: uri_hash__.unwrap_or_default(),
                     penumbra_asset_id: penumbra_asset_id__,
                 })
             }