Revert "adding repo to sources list for riak"
Revert "adding repo to sources list for riak"

This reverts commit 4941826c01867650e7a1a5bb2f004f8a1a199dc4.

TouK/vumi,harrissoerja/vumi,TouK/vumi,vishwaprakashmishra/xmatrix,harrissoerja/vumi,vishwaprakashmishra/xmatrix,harrissoerja/vumi,vishwaprakashmishra/xmatrix,TouK/vumi