1.1.5 merge spec tests (#2781)

* Fix arbitrary check kintsugi

* Add merge chain spec fields, and a function to determine which constant to use based on the state variant

* increment spec test version

* Remove `Transaction` enum wrapper

* Remove Transaction new-type

* Remove gas validations

* Add `--terminal-block-hash-epoch-override` flag

* Increment spec tests version to 1.1.5

* Remove extraneous gossip verification https://github.com/ethereum/consensus-specs/pull/2687

* - Remove unused Error variants
- Require both "terminal-block-hash-epoch-override" and "terminal-block-hash-override" when either flag is used

* - Remove a couple more unused Error variants

Co-authored-by: Paul Hauner <paul@paulhauner.com>

consensus/state_processing/src/common/slash_validator.rs

@@ -31,14 +31,11 @@ pub fn slash_validator<T: EthSpec>(
             .safe_add(validator_effective_balance)?,
     )?;
 
-    let min_slashing_penalty_quotient = match state {
-        BeaconState::Base(_) => spec.min_slashing_penalty_quotient,
-        BeaconState::Altair(_) | BeaconState::Merge(_) => spec.min_slashing_penalty_quotient_altair,
-    };
     decrease_balance(
         state,
         slashed_index,
-        validator_effective_balance.safe_div(min_slashing_penalty_quotient)?,
+        validator_effective_balance
+            .safe_div(spec.min_slashing_penalty_quotient_for_state(state))?,
     )?;
 
     // Apply proposer and whistleblower rewards