[perl #74420] Micro 5.12 regression: regexes introduced in feature.pm

# New Ticket Created by  "Ævar Arnfjörð Bjarmason" 
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In 7be54ea7d51824e3590034a7880ff325459e8d52 I removed regexes in
feature.pm so that you wouldn't get irrelevant output on:

    perl -Mre=debug -E '/foo/';

In 82cfb3a2c3500989056cbc46cb030c206fcb3602 these were added again.

It would be nice to either remove them or solve this properly. Why
does the hints hash propagate in cases like these:

    use re 'debug';
    use feature ':5.10';
    qr/foo/;

Maybe feature.pm could just use C<no re 'debug'>, but that would load
re.pm redundantly on any use of -E.

• [perl #74420] Micro 5.12 regression: regexes introduced in feature.pm by Ævar Arnfjörð Bjarmason