x/staking: Fix all linter warnings. Fixed warnings across base packages. New linters: - unparam - nolintlint Co-authored-by: Alessio Treglia <alessio@tendermint.com>
* x/staking: import and export HistoricalInfo * staking/types: add HistoricalInfo to GenesisState * changelog * add staking module to app BeginBlockers * remove JSON files * address comments from review * add HistoricalInfoKey to skipped prefixes * fix DiffKVStores * rm JSON