Revert "http: add --http2 to force HTTP/2"
Revert "http: add --http2 to force HTTP/2"

This reverts commit 99ce71250580070a4ed091e49cde3d2c7138ad58.

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc