FR: remove non-standard OCCURS n TO m without DEPENDING item

[GitMensch]

As noted in #1 there is an issue in at least https://github.com/ve3wwg/cobcurses/blob/master/src/copybk/COBCURSL.cbl:

../copybk/COBCURSL.cbl:47: error: TO phrase without DEPENDING phrase
../copybk/COBCURSL.cbl:53: error: TO phrase without DEPENDING phrase
../copybk/COBCURSL.cbl:110: error: TO phrase without DEPENDING phrase

       01   NC-FKEY-EXEMPTIONS.
            10  NC-FKEY-DEFN OCCURS 1 TO 12 TIMES.
                20 NC-FKEY-EXEMPT         PIC X.

The COBOL standard says it should either have a DEPENDING item or the 1 TO dropped (which is what IBM COBOL and cobc -std=ibm / cobc -fodo-without-to=ok do - therefore there is no urgent need to change) it.

Summary:
The source is valid on IBM but as it is an extension that has no real use and because other compilers may not support this I suggest to drop it in any places used (and would open a PR after the possible recreation of the repo - #2).