Clarify that IS_GITLAB_EE works for the whole GitLab now

doc/development/ee_features.md

@@ -19,7 +19,7 @@ CE specs should remain untouched as much as possible and extra specs
 should be added for EE. Licensed features can be stubbed using the
 spec helper `stub_licensed_features` in `EE::LicenseHelpers`.
 
-You can force Webpack to act as CE by either deleting the `ee/` directory or by
+You can force GitLab to act as CE by either deleting the `ee/` directory or by
 setting the [`IS_GITLAB_EE` environment variable](https://gitlab.com/gitlab-org/gitlab/blob/master/config/helpers/is_ee_env.js)
 to something that evaluates as `false`. The same works for running tests
 (for example `IS_GITLAB_EE=0 yarn jest`).