Don't register access archiver processes
Don't register access archiver processes

The registered name is never used, so this allows more than one access
archiver process to be run.

Fixes #717

GabrielNicolasAvellaneda/riak_cs,sdebnath/riak_cs,dragonfax/riak_cs,dragonfax/riak_cs,yangchengjian/riak_cs,sdebnath/riak_cs,basho/riak_cs,sdebnath/riak_cs,basho/riak_cs,laurenrother/riak_cs,laurenrother/riak_cs,yangchengjian/riak_cs,sdebnath/riak_cs,yangchengjian/riak_cs,GabrielNicolasAvellaneda/riak_cs,yangchengjian/riak_cs,GabrielNicolasAvellaneda/riak_cs,basho/riak_cs,basho/riak_cs,laurenrother/riak_cs,GabrielNicolasAvellaneda/riak_cs,laurenrother/riak_cs,dragonfax/riak_cs,dragonfax/riak_cs