revert

Author: Luca Forstner

packages/core/src/baseclient.ts

@@ -370,8 +370,6 @@ export abstract class BaseClient<O extends ClientOptions> implements Client<O> {
     const clientReleaseOption = this._options.release;
     const clientEnvironmentOption = this._options.environment;
     if ('aggregates' in session) {
-      // TODO(v9): Remove eslint disable
-      // eslint-disable-next-line @sentry-internal/sdk/no-optional-chaining
       if (!session.attrs?.release && !clientReleaseOption) {
         DEBUG_BUILD && logger.warn(MISSING_RELEASE_FOR_SESSION_ERROR);
         return;

packages/core/src/types-hoist/integration.ts

@@ -51,16 +51,6 @@ export interface Integration {
    * This receives the client that the integration was installed for as third argument.
    */
   processEvent?(event: Event, hint: EventHint, client: Client): Event | null | PromiseLike<Event | null>;
-
-  /**
-   * TODO
-   */
-  flush?(client: Client): Promise<void>;
-
-  /**
-   * TODO
-   */
-  close?(client: Client): Promise<void>;
 }
 
 /**