Revert of Pick the DTLS handshake timeout based on the ICE RTT estimate

Revert of Pick the DTLS handshake timeout based on the ICE RTT estimate (patchset #3 id:40001 of https://codereview.webrtc.org/2670113002/ )

Reason for revert:
Breaks Chromium FYI bots.

Original issue's description:
> Pick the DTLS handshake timeout based on the ICE RTT estimate
> 
> This CL replaces the previously-hardcoded DTLS timeout value of 50 ms with one that is picked dynamically as 2x ICE RTT (clamped between 50 and 3000 ms to keep it reasonable).
> 
> No tests yet - I'm working on these, but sending out this CL early to get feedback. I've tested it manually and on slow networks it results in successful DTLS setup in a single attempt - instead of clogging up the slow link with multiple retransmissions as done previosly.
> 
> BUG=webrtc:7099
> 
> Review-Url: https://codereview.webrtc.org/2670113002
> Cr-Commit-Position: refs/heads/master@{#16426}
> Committed: https://chromium.googlesource.com/external/webrtc/+/d030912de4d49e247533892927819c4a7f055815

TBR=deadbeef@webrtc.org,pthatcher@webrtc.org,pthatcher@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7099

[skvlad, 2017-02-03 01:37:25]

The CQ bit was checked by skvlad@webrtc.org

[skvlad, 2017-02-03 01:37:25]

Created Revert of Pick the DTLS handshake timeout based on the ICE RTT estimate

[commit-bot: I haz the power, 2017-02-03 01:37:31]

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, 2017-02-03 01:37:31]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-02-03 01:37:32]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
Committers are members of the group "project-webrtc-committers".
Note that this has nothing to do with OWNERS files.

[skvlad, 2017-02-03 01:43:22]

Description was changed from

==========
Revert of Pick the DTLS handshake timeout based on the ICE RTT estimate
(patchset #3 id:40001 of https://codereview.webrtc.org/2670113002/ )

Reason for revert:
Breaks Chromium FYI bots.

Original issue's description:
> Pick the DTLS handshake timeout based on the ICE RTT estimate
> 
> This CL replaces the previously-hardcoded DTLS timeout value of 50 ms with one
that is picked dynamically as 2x ICE RTT (clamped between 50 and 3000 ms to keep
it reasonable).
> 
> No tests yet - I'm working on these, but sending out this CL early to get
feedback. I've tested it manually and on slow networks it results in successful
DTLS setup in a single attempt - instead of clogging up the slow link with
multiple retransmissions as done previosly.
> 
> BUG=webrtc:7099
> 
> Review-Url: https://codereview.webrtc.org/2670113002
> Cr-Commit-Position: refs/heads/master@{#16426}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/d030912de4d49e24753389292...

TBR=deadbeef@webrtc.org,pthatcher@webrtc.org,pthatcher@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7099
==========

to

==========
Revert of Pick the DTLS handshake timeout based on the ICE RTT estimate
(patchset #3 id:40001 of https://codereview.webrtc.org/2670113002/ )

Reason for revert:
Breaks Chromium FYI bots.

Original issue's description:
> Pick the DTLS handshake timeout based on the ICE RTT estimate
> 
> This CL replaces the previously-hardcoded DTLS timeout value of 50 ms with one
that is picked dynamically as 2x ICE RTT (clamped between 50 and 3000 ms to keep
it reasonable).
> 
> No tests yet - I'm working on these, but sending out this CL early to get
feedback. I've tested it manually and on slow networks it results in successful
DTLS setup in a single attempt - instead of clogging up the slow link with
multiple retransmissions as done previosly.
> 
> BUG=webrtc:7099
> 
> Review-Url: https://codereview.webrtc.org/2670113002
> Cr-Commit-Position: refs/heads/master@{#16426}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/d030912de4d49e24753389292...

TBR=deadbeef@webrtc.org,pthatcher@webrtc.org,pthatcher@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7099
==========