8b9781c905d8 added a new arg to regprop(), but it's only used on debugging
builds. Also, moving the definition of regprop() in embed.fnc left a
stranded comment, so delete that too.
: FIXME - is anything in re using this now?
EXp |SV*|reg_qr_package|NN REGEXP * const rx
-: FIXME - why the E?
Anp |void |repeatcpy |NN char* to|NN const char* from|I32 len|IV count
AnpP |char* |rninstr |NN const char* big|NN const char* bigend \
|NN const char* little|NN const char* lend
PERL_UNUSED_ARG(o);
PERL_UNUSED_ARG(prog);
PERL_UNUSED_ARG(reginfo);
+ PERL_UNUSED_ARG(pRExC_state);
#endif /* DEBUGGING */
}