SERVER-133713 added enterprise-amazon-linux2023-arm64-disagg-no-schema-epochs, a temporary Evergreen variant that runs the disagg suite with featureFlagEnableSchemaEpochs set to false. It exists so a failure in the disagg suite can be attributed to schema epochs rather than to something else.

Remove the variant once schema epochs are stable enough that the comparison no longer earns its CI cost.

The variant is defined in etc/evergreen_yml_components/variants/amazon/test_dev_master_branch_only.yml. It mirrors the task selection of enterprise-amazon-linux2023-arm64-disagg-no-feature-flags-extra-system-deps so the two are directly comparable.