f6a99e63b6
There is no point in returning an error when Free() fails. In fact it can only happen if we have a null pointer as object. There is further no place where the return value is used. Affected components are - aec - aecm - agc - ns BUG=441 R=kwiberg@webrtc.org Review URL: https://webrtc-codereview.appspot.com/50579004 Cr-Commit-Position: refs/heads/master@{#8966}