diff --git a/js/src/builtin/temporal/Duration.cpp b/js/src/builtin/temporal/Duration.cpp
index fc39e2d6aeecc..a4a1261a6f81a 100644
--- a/js/src/builtin/temporal/Duration.cpp
+++ b/js/src/builtin/temporal/Duration.cpp
@@ -44114,36 +44114,6 @@ false
 }
 /
 /
-FIXME
-:
-spec
-issue
--
-relativeTo
-can
-be
-undefined
-in
-which
-case
-it
-'
-s
-not
-/
-/
-valid
-to
-test
-for
-the
-presence
-of
-internal
-slots
-.
-/
-/
 Steps
 26
 -