Revert of More thorough overlapping cursor tests.

Revert of More thorough overlapping cursor tests. (patchset #2 id:60001 of https://codereview.chromium.org/2781623008/ )

Reason for revert:
external/wpt/IndexedDB/parallel-overlapping-cursors.html is failing on the win7 webkit bot: https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%29/builds/9419.

Original issue's description:
> More thorough overlapping cursor tests.
> 
> BUG=705837
> 
> Review-Url: https://codereview.chromium.org/2781623008
> Cr-Commit-Position: refs/heads/master@{#461932}
> Committed: https://chromium.googlesource.com/chromium/src/+/0c187ee3c2b8fc9d0dd81758f892cf6fd0ba4c3f

[email protected],[email protected],[email protected]
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=705837
Review-Url: https://codereview.chromium.org/2803563002
Cr-Commit-Position: refs/heads/master@{#461991}
Committed: https://chromium.googlesource.com/chromium/src/+/8a1c41840a061c7de4dfe40a4f2f5713645d8800

[Max Morin, 2017-04-05 06:37:02]

The CQ bit was checked by [email protected]

[Max Morin, 2017-04-05 06:37:03]

Created Revert of More thorough overlapping cursor tests.

[commit-bot: I haz the power, 2017-04-05 06:37:17]

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

[commit-bot: I haz the power, 2017-04-05 06:38:00]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491374222690910, "parent_rev":
"421f86bb22686a086062ffde46fb746039dd2490", "commit_rev":
"8a1c41840a061c7de4dfe40a4f2f5713645d8800"}

[commit-bot: I haz the power, 2017-04-05 06:39:41]

Description was changed from

==========
Revert of More thorough overlapping cursor tests. (patchset #2 id:60001 of
https://codereview.chromium.org/2781623008/ )

Reason for revert:
external/wpt/IndexedDB/parallel-overlapping-cursors.html is failing on the win7
webkit bot:
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%....

Original issue's description:
> More thorough overlapping cursor tests.
> 
> BUG=705837
> 
> Review-Url: https://codereview.chromium.org/2781623008
> Cr-Commit-Position: refs/heads/master@{#461932}
> Committed:
https://chromium.googlesource.com/chromium/src/+/0c187ee3c2b8fc9d0dd81758f892...

[email protected],[email protected],[email protected]
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=705837
==========

to

==========
Revert of More thorough overlapping cursor tests. (patchset #2 id:60001 of
https://codereview.chromium.org/2781623008/ )

Reason for revert:
external/wpt/IndexedDB/parallel-overlapping-cursors.html is failing on the win7
webkit bot:
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Win7%20%28dbg%....

Original issue's description:
> More thorough overlapping cursor tests.
> 
> BUG=705837
> 
> Review-Url: https://codereview.chromium.org/2781623008
> Cr-Commit-Position: refs/heads/master@{#461932}
> Committed:
https://chromium.googlesource.com/chromium/src/+/0c187ee3c2b8fc9d0dd81758f892...

[email protected],[email protected],[email protected]
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=705837

Review-Url: https://codereview.chromium.org/2803563002
Cr-Commit-Position: refs/heads/master@{#461991}
Committed:
https://chromium.googlesource.com/chromium/src/+/8a1c41840a061c7de4dfe40a4f2f...
==========

[commit-bot: I haz the power, 2017-04-05 06:39:41]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/8a1c41840a061c7de4dfe40a4f2f...