Add Deinit() to the destructors of Voice/Video/RtpDataChannel.
Add Deinit() to the destructors of Voice/Video/RtpDataChannel.

This is a follow up CL of
https://webrtc-review.googlesource.com/c/src/+/59586.

The Deinit() method is not added because of some merging issue.

Bug: none
Change-Id: If23b0619a027379b920d4113ec507bff087d44fd
Reviewed-on: https://webrtc-review.googlesource.com/65787
Reviewed-by: Steve Anton <93f73658da16553b94c040887a439a155812e54e@webrtc.org>
Commit-Queue: Zhi Huang <64514bc03b49e67cfb75da60b665f8d8aefa50ca@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#22694}
ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc