How to remove the 'Last Updated' timestamp from patient reports

When I try to print a patient report (Patient → Report) and select the vitals checkbox, I am getting all the vitals that I want, plus the “Last Updated” timestamp.

However, I am trying to hide or remove the “Last Updated” part of the vital signs. I looked at the code in interface/forms/vitals/C_FormVitals.class.php, interface/forms/vitals/report.php, and interface/patient_file/report/patient_report.php, but I am not sure how this “Last Updated” is pulled into the report. I would appreciate any help.