Revert of Added EventSender.setTouchPointRadius() for layoutTests

Revert of Added EventSender.setTouchPointRadius() for layoutTests (patchset #4 id:60001 of https://codereview.chromium.org/990183003/)

Reason for revert:
Layout tests failures, see crbug/468704

Original issue's description:
> Added EventSender.setTouchPointRadius() for layoutTests
>
> A link to the Blink patch (layoutTests) https://codereview.chromium.org/990193002/
>
> BUG=
>
> Committed: https://crrev.com/97a6dbc41736e484f1b5ad544f68f8d34013179b
> Cr-Commit-Position: refs/heads/master@{#321167}

TBR=rbyers@chromium.org,d.pikalov@partner.samsung.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=468704
Committed: https://crrev.com/74b2e3951529b722af6fff7c3105d559c40fd4e6
Cr-Commit-Position: refs/heads/master@{#321335}

[Fabrice (no longer in Chrome), 2015-03-19 11:09:38]

Created Revert of Added EventSender.setTouchPointRadius() for layoutTests

[commit-bot: I haz the power, 2015-03-19 11:09:46]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1011383006/1

[commit-bot: I haz the power, 2015-03-19 11:09:47]

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

[commit-bot: I haz the power, 2015-03-19 11:09:48]

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,
_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.

[Andrew Hayden (chromium.org), 2015-03-19 11:30:39]

On 2015/03/19 11:09:48, I haz the power (commit-bot) wrote:
> 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,
> _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.

LGTM, but please copy the bug ID into the bUG= field.

[Fabrice (no longer in Chrome), 2015-03-19 11:32:08]

The CQ bit was checked by fdegans@chromium.org

[commit-bot: I haz the power, 2015-03-19 11:32:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1011383006/1

[commit-bot: I haz the power, 2015-03-19 11:35:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-19 11:36:04]

Patchset 1 (id:??) landed as
https://crrev.com/74b2e3951529b722af6fff7c3105d559c40fd4e6
Cr-Commit-Position: refs/heads/master@{#321335}