test: drop the fixture's unused module-path export

The constant was left over from an earlier shape of the guard, which
located the fixture by path before it imported it directly. Nothing reads
it now, and the dead-code gate says so.

src/lib/analytics/score/__tests__/fixtures/invented-target-pillar.ts

@@ -22,8 +22,6 @@
  */
 import type { PillarReference, PillarValue } from "../../types";
 
-export const INVENTED_TARGET_MODULE_PATH = new URL(import.meta.url).pathname;
-
 export interface InventedTargetInput {
   /** The profile field the band is synthesised from. */
   heightCm: number | null;