Delete the remainder of @wallet-standard/react that is no longer used

Author: steveluscher

packages/react/core/src/WalletAccountProvider.tsx

@@ -2,9 +2,4 @@ export * from '@wallet-standard/ui';
 
 export * from './features/index.js';
 
-export * from './useWallet.js';
-export * from './useWalletAccount.js';
 export * from './useWallets.js';
-export * from './WalletAccountProvider.js';
-export * from './WalletProvider.js';
-export * from './WalletStandardProvider.js';