chore(types): remove dead protoMethodsMs field and stale comment

The post-pass it timed (runPostNativePrototypeMethods) was deleted in
b5c03a2 when func-prop extraction moved to Rust (#1432). The optional
field was never set by any code path that survived the deletion.

Also remove the stale reference to "prototype-methods post-pass" from
the parseFilesWasmForBackfill docstring — only the this-dispatch
post-pass uses symbolsOnly now.

Closes #1432

Author: carlos-alm

src/domain/parser.ts

@@ -1259,8 +1259,8 @@ async function parseFilesWasmInline(
  * `opts.symbolsOnly` skips the AST/complexity/CFG/dataflow visitors in the
  * worker (and their result serialization across the thread boundary) for
  * callers that only consume definitions/calls/typeMap — the native
- * orchestrator's prototype-methods and this-dispatch post-passes. Callers
- * that ingest the files into the DB (dropped-language backfill) must keep
+ * orchestrator's this-dispatch post-pass. Callers that ingest the files into
+ * the DB (dropped-language backfill) must keep
  * the default full analysis.
  */
 export async function parseFilesWasmForBackfill(

src/types.ts

@@ -1268,8 +1268,6 @@ export interface BuildResult {
     edgesMs: number;
     structureMs: number;
     rolesMs: number;
-    /** Wall-clock time for the prototype-method post-pass (native path only). */
-    protoMethodsMs?: number;
     /** Wall-clock time for the CHA expansion post-pass (native path only). */
     chaMs?: number;
     /** Wall-clock time for the this/super dispatch WASM post-pass (native path only). */