RFC: Don't generate EBCDIC non-1047 tables

Perl is supposed to work with code page 047 and POSIX-BC, but we haven't 
had any reports of such usage in a very long time.

I propose commenting out the code that generates the tables for these 
two code pages until and if someone actually wants to use them.

The underlying code has changed so that only one place has to change to 
accomplish this, and to reverse it should the need arise.

By not generating the tables, we speed up some regens when needed, and 
the disk space used in the distribution is smaller.

• RFC: Don't generate EBCDIC non-1047 tables by Karl Williamson