Remove nonexistent paths from our API tests config

These paths (or rather their absence) breaks the functional_tests_server script.

An analogous problem for cases was fixed in elastic#79127.

x-pack/test/detection_engine_api_integration/common/config.ts

@@ -4,7 +4,6 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import path from 'path';
 import { CA_CERT_PATH } from '@kbn/dev-utils';
 import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 import { services } from './services';
@@ -71,10 +70,6 @@ export function createTestConfig(name: string, options: CreateTestConfigOptions)
           `--xpack.actions.enabledActionTypes=${JSON.stringify(enabledActionTypes)}`,
           '--xpack.eventLog.logEntries=true',
           ...disabledPlugins.map((key) => `--xpack.${key}.enabled=false`),
-          `--plugin-path=${path.join(__dirname, 'fixtures', 'plugins', 'alerts')}`,
-          `--plugin-path=${path.join(__dirname, 'fixtures', 'plugins', 'actions')}`,
-          `--plugin-path=${path.join(__dirname, 'fixtures', 'plugins', 'task_manager')}`,
-          `--plugin-path=${path.join(__dirname, 'fixtures', 'plugins', 'aad')}`,
           ...(ssl
             ? [
                 `--elasticsearch.hosts=${servers.elasticsearch.protocol}://${servers.elasticsearch.hostname}:${servers.elasticsearch.port}`,