core-utils: delete legacy code

Deletes old code related to legacy batch serialization
and old RPC types.

.changeset/chilly-carrots-impress.md

+---
+'@eth-optimism/core-utils': patch
+---
+
+Delete legacy core-utils

packages/core-utils/src/optimism/index.ts

@@ -3,9 +3,7 @@
  */
 
 export * from './alias'
-export * from './batch-encoding'
 export * from './fees'
-export * from './rollup-types'
 export * from './op-node'
 export * from './deposit-transaction'
 export * from './encoding'

packages/core-utils/src/optimism/rollup-types.ts

-/* External Imports */
-import {
-  BlockWithTransactions,
-  TransactionResponse,
-} from '@ethersproject/abstract-provider'
-
-/**
- * Structure of the response returned by L2Geth nodes when querying the `rollup_getInfo` endpoint.
- */
-export interface RollupInfo {
-  mode: 'sequencer' | 'verifier'
-  syncing: boolean
-  ethContext: {
-    blockNumber: number
-    timestamp: number
-  }
-  rollupContext: {
-    index: number
-    queueIndex: number
-  }
-}
-
-/**
- * Enum used for the two transaction types (queue and direct to Sequencer).
- */
-export enum QueueOrigin {
-  Sequencer = 'sequencer',
-  L1ToL2 = 'l1',
-}
-
-/**
- * JSON transaction representation when returned by L2Geth nodes. This is simply an extension to
- * the standard transaction response type. You do NOT need to use this type unless you care about
- * having typed access to L2-specific fields.
- */
-export interface L2Transaction extends TransactionResponse {
-  l1BlockNumber: number
-  l1TxOrigin: string
-  queueOrigin: string
-  rawTransaction: string
-}
-
-/**
- * JSON block representation when returned by L2Geth nodes. Just a normal block but with
- * L2Transaction objects instead of the standard transaction response object.
- */
-export interface L2Block extends BlockWithTransactions {
-  stateRoot: string
-  transactions: [L2Transaction]
-}
-
-/**
- * Generic batch element, either a state root batch element or a transaction batch element.
- */
-export interface BatchElement {
-  // Only exists on state root batch elements.
-  stateRoot: string
-
-  // Only exists on transaction batch elements.
-  isSequencerTx: boolean
-  rawTransaction: undefined | string
-
-  // Batch element context, exists on all batch elements.
-  timestamp: number
-  blockNumber: number
-}
-
-/**
- * List of batch elements.
- */
-export type Batch = BatchElement[]