Remove printf workaround mention from 5-to-6 doc

doc/Language/5to6-perlfunc.pod6

@@ -991,13 +991,10 @@ standard out, you can use a method call: C<$fh.print("howdy!")>
 
 =item printf
 
-Works in Perl 6, but only as a function writing to standard out.  To
-use for a file handle, one must create a formatted string using function C<sprintf>
-and then pass the string to C<IO::Handle> method C<.say> or C<.print> as desired.
-For the formats, see the documentation for C<sprintf>.  For example:
-
-  my $fh = open "tmp.txt", :w;
-  $fh.say(sprintf("%d", 2));
+Perl 6 version is similar; see
+L<sprintf|https://docs.perl6.org/type/Str#sub_sprintf> for details
+on acceptable format directives. To print to a filehandle other than
+STDOUT, use the L«C<.printf>|/type/printf» method on that filehandle.
 
 =head2 prototype