Philippine President Rodrigo Duterte threatened to remove the vice-president from her “drugs tsar” post if she shared state secrets with foreign individuals and entities.The warning, which the president made in a television interview, came a few days after he offered Leni Robredo a lead role in his brutal war on drugs, which she later accepted to reassess a campaign she said was fraught with senseless killings.Robredo, a political rival of the popular Duterte, said on October 23 that…