We don't need external indexing if it is already a header. The whole syntax seems wrong here, which caused 404 entry.

Altai-man · Altai-man · commit c5d8949a4a0a · 2016-12-10T15:58:23.000+02:00
Fixes #1014
diff --git a/doc/Language/typesystem.pod6 b/doc/Language/typesystem.pod6
@@ -404,7 +404,7 @@ public attributes of that class.
     my $c = C.new.a = 42;
     dd $c; # OUTPUT«Int $c = 42␤»
 
-=head3 X«trait C<is required>|is required»
+=head3 trait C<is required>
 
 Defined as:
 
