Remove temporary `x-pack/legacy/plugins/cross_cluster_replication` eslint overrides

[spalger]

In order to move forward with #49244 we needed to disable some rules in x-pack/legacy/plugins/cross_cluster_replication. We need to remove the related overrides and get the package passing these rules pretty soon.

// .eslintrc.js
{
  files: ['x-pack/legacy/plugins/cross_cluster_replication/**/*.{js,ts,tsx}'],
  rules: {
    'jsx-a11y/click-events-have-key-events': 'off',
  },
},

[elasticmachine]

Pinging @elastic/es-ui (Team:Elasticsearch UI)

[cjcenizal]

All done! 🍻