conduit "library" delete, resolve some warnings from that

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/service/pdu.rs

@@ -61,7 +61,7 @@ impl PduEvent {
 		let mut content = serde_json::from_str(self.content.get())
 			.map_err(|_| Error::bad_database("PDU in db has invalid content."))?;
 		redact_content_in_place(&mut content, &room_version_id, self.kind.to_string())
-			.map_err(|e| Error::RedactionError(self.sender.server_name().to_owned(), e))?;
+			.map_err(|e| Error::Redaction(self.sender.server_name().to_owned(), e))?;
 
 		self.unsigned = Some(
 			to_raw_value(&json!({

src/service/sending/send.rs

@@ -116,7 +116,7 @@ where
 
 	debug!("Got {status:?} for {method} {url}");
 	if !status.is_success() {
-		return Err(Error::FederationError(
+		return Err(Error::Federation(
 			destination.to_owned(),
 			RumaError::from_http_response(http_response),
 		));
@@ -423,7 +423,7 @@ fn handle_resolve_error(e: &ResolveError) -> Result<()> {
 		},
 		_ => {
 			error!("{e}");
-			Err(Error::Error(e.to_string()))
+			Err(Error::Err(e.to_string()))
 		},
 	}
 }