Remove special section about set operators

It was empty

Author: lizmat

doc/Language/operators.pod6

@@ -3323,18 +3323,6 @@ instance, applying it to division will yield an exception.
 =for code
 say [%] ();  # OUTPUT: «(exit code 1) No zero-arg meaning for infix:<%>␤
 
-=head1 Set-Like operators
-
-Perl6 also includes operators for the L<Set|/type/Set>, L<Bag|/type/Bag> and
-L<Mix|/type/Mix> types.
-
-Those operators are documented fully on L<their own page|/language/setbagmix>.
-This summary those operators are included for completeness.
-
-=head2 Operators that return C<Bool>
-
-=head2 Operators that return C<Set> or C<Bag>
-
 =head2 term ∅
 
 X<|∅>