[IMP] account: Removed unused vars

addons/account/wizard/account_change_currency.py

addons/account/wizard/account_chart.py

addons/account/wizard/account_invoice_state.py

addons/account/wizard/account_journal_select.py

addons/account/wizard/account_move_bank_reconcile.py

addons/account/wizard/account_move_journal.py

addons/account/wizard/account_period_close.py

addons/account/wizard/account_reconcile.py

addons/account/wizard/account_reconcile_partner_process.py