Harden item occurrence grounding

internal/modules/dnd/locations/identity/identity_test.go

@@ -15,17 +15,6 @@ func TestNormalizeDisplayOnlyChangesWhitespace(t *testing.T) {
 	}
 }
 
-func TestComparisonKeyNormalizesUnicodeWhitespaceAndApostrophes(t *testing.T) {
-	for _, pair := range [][2]string{
-		{"  Caf\u00e9\u2003d\u2019Or  ", "cafe\u0301 d'Or"},
-		{"\uff34\uff48\uff45\u00a0\uff34\uff41\uff56\uff45\uff52\uff4e", "the tavern"},
-	} {
-		if left, right := ComparisonKey(pair[0]), ComparisonKey(pair[1]); left != right {
-			t.Fatalf("ComparisonKey(%q) = %q, want value equal to %q", pair[0], left, pair[1])
-		}
-	}
-}
-
 func TestDeriveIDUsesDocumentedCompactJSONInput(t *testing.T) {
 	refs := []source.SourceRef{
 		{SourceID: "session-alpha", StartUnitID: 9, EndUnitID: 9},