Tests: Remove Gutenberg plugin activation e2e test.
The purpose of tests/e2e/specs/gutenberg-plugin.test.js
is to ensure that running the Gutenberg plugin (stable version) on a WordPress trunk
install doesn't produce any fatals.
The test was introduced in [54913], i.e. it has been around since WP 6.2. It makes sense to have it present on older branches, as the Gutenberg plugin not only supports trunk
, but also the current stable version of WordPress (i.e. currently 6.5), and one version below (6.4). However, it is not expected to work on any earlier versions beyond that; in practice, it has produced errors on some of those.
Additionally, the test was migrated from Puppeteer to Playwright after WP 6.3, so it's not possible to simply backport [58046] (which would skip the test from running on outdated WP versions) to the 6.3 branch.
As a consequence, it makes most sense to remove the test from the 6.3 branch altogether, as has already been done for 6.2.
Follow-up to [57972].
Props jorbin, johnbillion, swissspidy.
See #60971.