Rpcapi fix - requires Eth namespace

[araskachoi]

Closes: #835

Description

The code requires the eth namespace for api to run the application. Prior to making the api modular, ALL namespaces have been enabled by default. With the most recent update to the API, #821, the eth api has been removed and is required by the user to include the namespace in the flag (--rpc-api "eth"). This would fix the error that is seen in the ticket this closes.

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[freddyli7]

lgtm