chore(rpc-types): remove EngineRpcError (#3975)

crates/rpc/rpc-types/src/eth/engine/error.rs

@@ -1,58 +0,0 @@
-//! Commonly used errors for the `engine_` namespace.
-
-/// List of Engine API errors used in RPC, see <https://github.com/ethereum/execution-apis/blob/main/src/engine/common.md#errors>
-///
-/// Note: These are all errors that can be returned by the `engine_` namespace in the error case.
-///
-/// TODO: get rid of this
-#[derive(Debug, Copy, PartialEq, Eq, Clone, thiserror::Error)]
-pub enum EngineRpcError {
-    /// Invalid JSON was received by the server.
-    #[error("Invalid JSON was received by the server")]
-    ParseError,
-    /// The JSON sent is not a valid Request object.
-    #[error("The JSON sent is not a valid Request object")]
-    InvalidRequest,
-    /// The method does not exist / is not available.
-    #[error("The method does not exist / is not available")]
-    MethodNotFound,
-    /// Invalid method parameter(s).
-    #[error("Invalid method parameter(s)")]
-    InvalidParams,
-    /// Internal JSON-RPC error.
-    #[error("Internal JSON-RPC error")]
-    InternalError,
-    /// Generic client error while processing request.
-    #[error("Server error")]
-    ServerError,
-    /// Payload does not exist / is not available.
-    #[error("Unknown payload")]
-    UnknownPayload,
-    /// Forkchoice state is invalid / inconsistent.
-    #[error("Invalid forkchoice state")]
-    InvalidForkchoiceState,
-    /// Payload attributes are invalid / inconsistent.
-    #[error("Invalid payload attributes")]
-    InvalidPayloadAttributes,
-    /// Number of requested entities is too large.
-    #[error("Too large request")]
-    TooLargeRequest,
-}
-
-impl EngineRpcError {
-    /// Returns the error code as `i32`
-    pub const fn code(&self) -> i32 {
-        match *self {
-            EngineRpcError::ParseError => -32700,
-            EngineRpcError::InvalidRequest => -32600,
-            EngineRpcError::MethodNotFound => -32601,
-            EngineRpcError::InvalidParams => -32602,
-            EngineRpcError::InternalError => -32603,
-            EngineRpcError::ServerError => -32000,
-            EngineRpcError::UnknownPayload => -38001,
-            EngineRpcError::InvalidForkchoiceState => -38002,
-            EngineRpcError::InvalidPayloadAttributes => -38003,
-            EngineRpcError::TooLargeRequest => -38004,
-        }
-    }
-}

crates/rpc/rpc-types/src/eth/engine/mod.rs

@@ -2,12 +2,11 @@
 
 #![allow(missing_docs)]
 
-mod error;
 mod forkchoice;
 mod payload;
 mod transition;
 
-pub use self::{error::*, forkchoice::*, payload::*, transition::*};
+pub use self::{forkchoice::*, payload::*, transition::*};
 
 /// The list of supported Engine capabilities
 pub const CAPABILITIES: [&str; 9] = [