in fact the "truth" is as reported in the BBC News item -

"...the government has reaffirmed that in England, teaching children about the Holocaust is compulsory, and it is not banned elsewhere in the UK."

Please read the report Keith A of Hertford, it states clearly that ONE school opted not to select the Holocaust as the coursework project for GCSE for fear of confrontation with some Muslim pupils - no where does it say it was removed from the curriculum!