remove remaining ad_hoc_references
remove remaining ad_hoc_references

This was removed in https://github.com/ManageIQ/manageiq-ui-classic/pull/8093
But there were a few stragglers remaining.

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