This was done to reduce the number of direct dependencies we have. It
should be functionally equivalent. The bundle size should not change,
as we use `clone` as a transitive dependency in a number of places.
This migration will move users who have their clients configured to point at `rawtestrpc.metamask.io` to point at our new test-net RPC, `testrpc.metamask.io`.
Mark Stacey
Whymarrh Whitby
Thomas Huang
Kevin Serrano
kumavis
Dan Finlay