chore: remove unused code

Author: infiniteflower

app/components/UI/Bridge/Bridge.types.ts

@@ -4,13 +4,6 @@
 
 import { Transaction } from '@metamask/keyring-api';
 import { TransactionMeta } from '@metamask/transaction-controller';
-import { CaipChainId, Hex } from '@metamask/utils';
-
-/** Custom slippage modal parameters */
-export interface CustomSlippageModalParams {
-  sourceChainId?: CaipChainId | Hex;
-  destChainId?: CaipChainId | Hex;
-}
 
 /** Transaction details block explorer parameters */
 export interface TransactionDetailsBlockExplorerParams {