condense set current_user configuration settings
condense set current_user configuration settings

- now removing :dashboards from both @settings and user.settings(transferred from ManageIQ/manageiq@a160093f976aad5b60cecee1be6d04cdde32302a)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic