Banksy has been wiped clean after violating Transport for London’s (TfL) “strict anti-graffiti policy”.The elusive artist shared an incredibly rare video yesterday of him spray painting stencils of his famous rats inside a Circle Line train.One was seen sneezing across the window while another held hand sanitiser – both a clear nod to the ongoing coronavirus pandemic.But TfL confirmed yesterday that the work was removed “some days ago”, instead welcoming Banksy to recreate the message “in a suitable location”.A TfL spokesperson said: "We appreciate the sentiment of encouraging people to wear face coverings, which the vast majority of customers on our transport network are doing."In this particular case, the work was removed some days ago.