COTABATO CITY --- The High Tribunal upheld with finality a court ruling that the overstaying Marawi City schools superintendent has reached the mandatory retirement age.The recalcitrant education official, Mona Macatanong, had earlier sued officials of the Autonomous Region in Muslim Mindanao (ARMM) for replacing her after she turned 65 on October 18, 2013.Macatanong, an ethnic Maranaw, had insisted that the date of birth indicated in the government personal data sheet she filled out when she first applied as a public teacher was erroneous, short of about two years.Macatanong, backed by som