The sixth child victim of an alleged snack food poisoning incident in Naledi, Soweto, has died in hospital.The child, who was the only survivor of the incident that claimed the lives of five others who will be buried in a mass funeral service on Sunday, died after spending a week in hospital. Local ward councillor Lazarus Motha confirmed in an interview with SABC news that the child died on Sunday morning.Last week, the mother of the child could not hold back her tears while doing an interview with TimesLIVE Premium.Lydia Olifant, the mother of Katleho Olifant, 7, told the publication…