Remove legacy reconciliation path

assets/dnd/shared/prompts/common-dnd-entity-reconciliation.md

@@ -1,7 +0,0 @@
-Identify only well-supported duplicate groups among the supplied candidates.
-
-Return each selected candidate's supplied contextual descriptor exactly: its
-`name` and complete ordered `source_refs`. A group must contain at least two
-supplied descriptors, and its `canonical` descriptor must be one of its
-members. Do not invent names, ranges, records, evidence, or replacement values.
-Omit any uncertain or unsafe group.