As part of T395524, we deployed the “Add a link” Growth feature to 100% of users on English Wikipedia. This made the no-link-recommendation variant, originally used for partial deployments, obsolete.

Since the experiment is now disabled and we no longer need to exclude a subset of users, we should remove the no-link-recommendation variant from configuration and any related code paths.

Acceptance Criteria:

• Confirm with @KStoller-WMF that there is no plan to revert to a partial deployment state for enwiki.
  • There is no plan to revert to a partial deployment (although there is always potential that this is something the community will ask for after release. Let's wait at least a sprint after the enwiki release).

• Remove the no-link-recommendation variant from CommonSettings.php and any other relevant configuration files.

• Remove any associated logic in GrowthExperiments that references this variant.

• Verify that “Add a link” remains enabled for 100% of users after cleanup.

• Update documentation (if any) that references the variant.