Fix comment about remote restart being requested in createOffer

BUG=None

Review-Url: https://codereview.webrtc.org/2837153002
Cr-Original-Commit-Position: refs/heads/master@{#17870}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 6275dfdd063ef6d22fca73329fc709238106bd21
1 file changed