jsonrpc: change log to debug (#5131)
jsonrpc: change log to debug (#5131)

## Description

this log message was marked as not useful and in the issue it was proposed to move it to debug. I am going with this path for now. After we have refactored the logger we shold go through the codebase in order to clean our log statements. 

Closes: #2101


tendermint/tendermint,tendermint/tendermint,tendermint/tendermint,tendermint/tendermint