[r3dbars]

Remove the unused reservedIdentity(at:) method from the private ReplacementTranscriptReservations class. The actual save path already obtains the bound capture ID through reservedExpectation(at:); reservation, identity protection and every public saveTranscript overload remain unchanged.

DEAD-CODE-3: the tracked repository's only reference was the declaration. The full file equals main minus this seven-line method; the unrelated public-overload removal in broad draft #2336 is excluded.

Validation at credited head 01dde52037a44a6cded18fd289cddb3318978ed0, against main 8a38235eef00816a79daa1324387a21ef880204d:

• Root independent full-diff, whole private-owner and actual save-caller review GREEN; six committed input hashes match the reviewed bytes. No new tests for this unused private method.
• bash check.sh: 16 PASS / 3 FAIL, overall FAIL. Owned dependency/app builds, strict concurrency over 740 app sources and mapped static checks passed. Isolation guards refused the full fast suite, integration smoke and package tests with exit 3; none ran.
• Raw exact-head proof archived before verifier. Separate preflight PASS; head/input hashes stayed stable and the tree clean.
• verify-change.sh rebuilt the owned app and exited 0; meetings SKIP because Transcripted was already running. No app was quit or launched, and its manual/hardware checklist was not performed.
• Full QA bench refused before execution with exit 3. No file/library/preferences or native behavior was exercised. Hosted and combined-change CI remain pending, including other proposals touching TranscriptSaver.

Separate draft for this issue; no merge or release. Compilation and source review are not native or saved-library proof.