EIP-2930 spec change for signature hash (#261)

* EIP-2930 spec change for signature hash
* Removing eip2930 test blocks

crates/ethcore/src/client/evm_test_client.rs

@@ -99,7 +99,6 @@ impl<'a> EvmTestClient<'a> {
             ForkSpec::Homestead => Some(ethereum::new_homestead_test()),
             ForkSpec::EIP150 => Some(ethereum::new_eip150_test()),
             ForkSpec::EIP158 => Some(ethereum::new_eip161_test()),
-            ForkSpec::EIP2930 => Some(ethereum::new_eip2930_test()),
             ForkSpec::Byzantium => Some(ethereum::new_byzantium_test()),
             ForkSpec::Constantinople => Some(ethereum::new_constantinople_test()),
             ForkSpec::ConstantinopleFix => Some(ethereum::new_constantinople_fix_test()),

crates/ethcore/src/ethereum/mod.rs

@@ -274,14 +274,6 @@ pub fn new_berlin_test() -> Spec {
     )
 }
 
-/// Create a new Foundation Berlin era spec.
-pub fn new_eip2930_test() -> Spec {
-    load(
-        None,
-        include_bytes!("../../res/chainspec/test/eip2930_test.json"),
-    )
-}
-
 /// Create a new Musicoin-MCIP3-era spec.
 pub fn new_mcip3_test() -> Spec {
     load(