This will allow clients to build peerconnection_jni without built-in audio codecs. Bug: webrtc:9048 Change-Id: I0d327debccac1ec7f7d0f4d994ca4e712e994f91 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/180422 Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Commit-Queue: Sami Kalliomäki <sakal@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31800}