Transactions fail with Ledger Nano

[mattharrop]

Summary of Bug

Attempting to transact using an account on a Ledger Nano results in an error.

$ provenanced tx <anything> --from <ledger> --yes
Default sign-mode 'direct' not supported by Ledger, using sign-mode 'amino-json'.
Error: ledger nano S: hidapi: failed to open device

Observed using v1.18.0 on MacOS.

Version

Steps to Reproduce

Any transaction.

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[iramiller]

We should just strip all these references to the the ledger device since the default cosmos app doesn't properly support the 505 coin type of provenance and our delayed for years app still hasn't launched.

It does not seem like a great loss given the hacks, data breaches, and general poor support Ledger offers.