fix: No double recording rules for global search SLI

We were already generating these rules as part of the web service's recording-rule registry. So we don't need them in the API ones.

Notice how the recording rules do not include a type selector, but include the type in the aggregation labels.

This reintroduces part of !5348 (merged), but only the part that removes some recordings, not the part that increases cardinality and caused gitlab-com/gl-infra/production#8345 (closed)