Britney Spears deleted the social media post in which she threatened to sue Halsey after she appeared to reference the Toxic pop star’s troubled history in her latest music video, RadarOnline.com can reveal. Shortly after deleting her initial post, Spears said that her previous critique of Halsey’s music video had been “fake news” and claimed: “That was not me on my phone!!! I love Halsey and that’s why I deleted it!!!” Halsey quoted Britney’s post and said: “I love Britney!!!! I always have and always will. You were the first person who ever made me realize what it means to feel inspired. And…