refactor: stop re-exporting auth typed data payload

Author: cesarenaldi

packages/client/src/actions/auth.ts

@@ -5,7 +5,6 @@ import {
   ApiKeysResponseSchema,
 } from '@polymarket/bindings/clob';
 import { type EvmAddress, type Signature, unwrap } from '@polymarket/types';
-import { createL2AuthTypedDataPayload } from '../authentication';
 import type { Client, SecureClient } from '../clients';
 import {
   type RateLimitError,
@@ -16,8 +15,6 @@ import {
 } from '../errors';
 import { validateWith } from '../response';
 
-export { createL2AuthTypedDataPayload };
-
 export type CreateL2AuthRequest = {
   chainId: number;
   nonce?: number;