A Halo trailer was supposed to air during the recent PlayStation State of Play event, but Xbox CEO Asha Sharma and her team decided to yank it, according to a report. This potentially damaged the relationship between Xbox and PlayStation, sources told Bloomberg. The story didn’t have any further information about the Halo trailer, but it was likely a video for Halo: Campaign Evolved, which releases this July. Microsoft and Sony subsequently released a trailer for the game featuring footage…