(Reuters) -Twitter Inc has rolled back a policy that was aimed at tackling misinformation related to COVID-19 on the social media platform, lending itself to the risk of a potential surge in false claims even as cases rise in China and some parts of the world. The move also comes amid concerns of Twitter’s ability to fight misinformation after it let go about half of its staff, including those involved in content moderation, under new boss Elon Musk. “Effective November 23, 2022, Twitter is no longer enforcing the COVID-19 misleading information policy,” according to an update on its blog page…