move rpc_unimplemented into impls module

rpc/src/v1/impls/mod.rs

@@ -25,6 +25,10 @@ macro_rules! take_weak {
 	}
 }
 
+macro_rules! rpc_unimplemented {
+	() => (Err(Error::internal_error()))
+}
+
 mod web3;
 mod eth;
 mod net;

rpc/src/v1/traits/mod.rs

@@ -16,10 +16,6 @@
 
 //! Ethereum rpc interfaces.
 
-macro_rules! rpc_unimplemented {
-	() => (Err(Error::internal_error()))
-}
-
 pub mod web3;
 pub mod eth;
 pub mod net;