During a presidential transition, various White House social media pages, etc are automatically put off-line so that they can be edited to reflect the viewpoints of the new administration. It's not a big deal.
https://fcw.com/articles/2016/08/24/social-transition-mazmanian.aspx?m=1
Also, Trump was the first Republican presidential nominee to ever publicly affirm LGBT rights, so there's no way he'll be scrapping that.