Removed redundant test from 'params' presence in 'rbac_tenant|group_delete' method
Removed redundant test from 'params' presence in 'rbac_tenant|group_delete' method

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