Remove RTCRtpTransceiverDirection API from BCD (#13550)
Remove RTCRtpTransceiverDirection API from BCD (#13550)

This PR removes `RTCRtpTransceiverDirection` from BCD.  This feature is a dictionary, enum, or WebIDL typedef and should not be included in BCD.
chrisdavidmills/browser-compat-data,mdn/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data