remove fee_calculator from nonce data

[tao-stones]

Problem

Nonce has FeeCalculator that is not used anymore.

Summary of Changes

• remove fee_calculator from Nonce account
• update call sites

Requires #34943

Fixes #34864

[jstarry]

I'd be in favor of a change that stores the fee_structure.lamports_per_signature in the blockhash queue and nonce data. It would require a feature gate but it would allow us to remove the FeeRateGovernor completely