Remove completed pipeline refactoring roadmap docs

docs/roadmap/implementation.md

@@ -1,18 +0,0 @@
-# Raw Pipeline Implementation
-
-The raw pipeline migration described here has been implemented.
-
-Current behavior is documented in:
-
-- [Pipeline Internals](../internal/pipeline.md)
-- [Modules](../internal/modules.md)
-- [LLM Runtime](../internal/llm.md)
-- [Configuration](../config.md)
-- [CLI Reference](../cli.md)
-- [Operations](../operations.md)
-- [Troubleshooting](../troubleshooting.md)
-- [JSON Output](../integrations/json-output.md)
-- [D&D Spell Raw Output](../integrations/dnd-spell-artifacts.md)
-
-Follow-up validator work remains tracked separately in
-[Validation Roadmap](validation.md).

docs/roadmap/pipeline.md

@@ -1,12 +0,0 @@
-# Raw Pipeline Data Model
-
-The raw pipeline data model has been implemented.
-
-Current behavior is documented in:
-
-- [Pipeline Internals](../internal/pipeline.md)
-- [Modules](../internal/modules.md)
-- [JSON Output](../integrations/json-output.md)
-
-Validator mapping and concrete validator behavior remain tracked separately in
-[Validation Roadmap](validation.md).