Removed `pallet::getter` usage from Polkadot Runtime pallets (#3660)
Part of #3326 @Kianenigma @ggwpez polkadot address: 12poSUQPtcF1HUPQGY3zZu2P8emuW9YnsPduA4XG3oCEfJVp --------- Signed-off-by: Matteo Muraca <[email protected]> Co-authored-by: ordian <[email protected]>