Revert "ozone: evdev: Use tracking id for TouchEvent finger id"

Revert "ozone: evdev: Use tracking id for TouchEvent finger id"

This broke fling.

This reverts commit f1e78836b0c4c44b5a30031761c79d13e4e9e8f7.

TBR=sadrul,alexst
NOTRY=true

Committed: https://crrev.com/8d2128e8c40cf18a3f2ea70dcbebf183ec69bdc2
Cr-Commit-Position: refs/heads/master@{#292439}

[spang, 2014-08-28 18:46:53]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2014-08-28 18:48:17]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/spang@chromium.org/514303002/1

[commit-bot: I haz the power, 2014-08-28 18:48:17]

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

[commit-bot: I haz the power, 2014-08-28 18:48:19]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer or
a provisional committer, _not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[spang, 2014-08-28 18:50:25]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2014-08-28 18:52:29]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/spang@chromium.org/514303002/1

[commit-bot: I haz the power, 2014-08-28 19:13:30]

Committed patchset #1 (id:1) as cd7a078b89faf4e92d4a7cf8b7ad4ff689ec00ad

[commit-bot: I haz the power, 2014-09-10 03:01:25]

Patchset 1 (id:??) landed as
https://crrev.com/8d2128e8c40cf18a3f2ea70dcbebf183ec69bdc2
Cr-Commit-Position: refs/heads/master@{#292439}