[extend] remove comment for Parrot_get_root_namespace
[extend] remove comment for Parrot_get_root_namespace

failed bad t/codingstd/c_arg_assert.t test

youprofit/parrot,tkob/parrot,tkob/parrot,tkob/parrot,tkob/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,youprofit/parrot,parrot/parrot,parrot/parrot,youprofit/parrot,youprofit/parrot,parrot/parrot,tkob/parrot,tkob/parrot,tkob/parrot,youprofit/parrot,parrot/parrot,parrot/parrot,tkob/parrot