revert: revert old keyring change

Author: ccharly

packages/keyring-utils/src/keyring.ts

@@ -63,17 +63,6 @@ export type Keyring = {
    */
   addAccounts(number: number): Promise<Hex[]>;
 
-  /**
-   * Create one or more accounts according to the provided options.
-   *
-   * This is an optional method that allows keyrings to support batch account
-   * creation with more advanced options than the legacy `addAccounts` method.
-   *
-   * @param options - Options describing how to create the account(s).
-   * @returns A promise that resolves to an array of the created account addresses.
-   */
-  createAccounts?(options: Record<string, Json>): Promise<Hex[]>;
-
   /**
    * Serialize the keyring state as a JSON-serializable object.
    *