If you want to leave it in the LOOKUP.xml but not display, add sigoption="hidden" or something like that where the option doesn't exist. Since the user won't have the permission, we'll hide it from them.
<tablecol dataattribute="type" id="storeroom_lookup_tablebody_col_2" mxevent="selectrecord" mxevent_desc="Go To %1" sortable="true" type="link" sigoption="hidden"/>
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Steven Shull
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