Pass encoded frames to packetizer immediately if encoder is configured to drop whole superframe. Bug: webrtc:9950 Change-Id: Iedee9618bb146307efd5a86cb35bf14b5e64b341 Reviewed-on: https://webrtc-review.googlesource.com/c/109002 Commit-Queue: Sergey Silkin <ssilkin@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25771}