Remove backwards compatibilty path for OpenH264 v1.4

Remove backwards compatibilty path for OpenH264 v1.4

Deps have rolled to 1.6, and since no one noticed that the old code path
was broken and wouldn't even compile, I assume no one is using it.
I therefore deem it time to clean away all these nasty ifdefs.

("const kNalHeaderSizeAllocation = 50;" doesn't declare a type)

BUG=chromium:614970
Review-Url: https://codereview.webrtc.org/2622233002
Cr-Commit-Position: refs/heads/master@{#16008}
Committed: https://chromium.googlesource.com/external/webrtc/+/10418acb9790a82aa8f8368c8d6ba2459747149b

[sprang_webrtc, 2017-01-11 11:58:59]

sprang@webrtc.org changed reviewers:
+ hta@webrtc.org

[sprang_webrtc, 2017-01-11 11:59:00]

Old code path won't even compile, so I'm assuming it's not needed anymore.

[hta-webrtc, 2017-01-11 12:15:17]

lgtm

joyfully!

[sprang_webrtc, 2017-01-11 12:35:15]

The CQ bit was checked by sprang@webrtc.org

[commit-bot: I haz the power, 2017-01-11 12:35:19]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-01-11 13:51:57]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484138115535910, "parent_rev":
"0ad0de6ef00a50a193da3238d4d0e9feef8d46a2", "commit_rev":
"10418acb9790a82aa8f8368c8d6ba2459747149b"}

[commit-bot: I haz the power, 2017-01-11 13:52:01]

Description was changed from

==========
Remove backwards compatibilty path for OpenH264 v1.4

Deps have rolled to 1.6, and since no one noticed that the old code path
was broken and wouldn't even compile, I assume no one is using it.
I therefore deem it time to clean away all these nasty ifdefs.

("const kNalHeaderSizeAllocation = 50;" doesn't declare a type)

BUG=chromium:614970
==========

to

==========
Remove backwards compatibilty path for OpenH264 v1.4

Deps have rolled to 1.6, and since no one noticed that the old code path
was broken and wouldn't even compile, I assume no one is using it.
I therefore deem it time to clean away all these nasty ifdefs.

("const kNalHeaderSizeAllocation = 50;" doesn't declare a type)

BUG=chromium:614970

Review-Url: https://codereview.webrtc.org/2622233002
Cr-Commit-Position: refs/heads/master@{#16008}
Committed:
https://chromium.googlesource.com/external/webrtc/+/10418acb9790a82aa8f8368c8...
==========

[commit-bot: I haz the power, 2017-01-11 13:52:03]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/10418acb9790a82aa8f8368c8...