Distillate was removed from the product-brief workflow in 1a88f001
but the eval suite still checked for distillate.md artifacts, the
bmad-distillator subagent invocation, and the polish→distillate phase
ordering. Strip all distillate references from A1/A5/B1/B2/B3/B5/B6,
remove B4 (phase-ordering eval centered on distillate) and B8 (pure
distillate eval), update _design_notes, and delete the orphan
distillate.md fixture from the forkbird-brief input set. IDs preserved
(gaps at B4, B8) so existing references stay stable.
2a952a9189