Revert of gpu: Measure texture uploads with glTexSubImage2D and glTexImage2D.

Revert of gpu: Measure texture uploads with glTexSubImage2D and glTexImage2D. (patchset #2 id:80001 of https://codereview.chromium.org/1022603002/)

Reason for revert:
This is causing gpu_perftests to fail on android perfbots. See http://crbug.com/468748

Original issue's description:
> gpu: Measure texture uploads with glTexSubImage2D and glTexImage2D.
>
> glTexImage2D and glTexSubImage2D could have different performance
> properties.
> With this patch we benchmark both of these upload techniques.
>
> When using glTexSubImage2D the texture storage is specified with
> glTexStorage2D when available, or glTexImage2D passing an empty pointer as data.
>
> BUG=423481
>
> Committed: https://crrev.com/1b9c0f6571baefe70dad41d504cbe3136ce41ae4
> Cr-Commit-Position: refs/heads/master@{#321300}

TBR=reveman@chromium.org,dcastagna@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=423481
Committed: https://crrev.com/259170b7fdd43ee87754d1ee89e865443c3af561
Cr-Commit-Position: refs/heads/master@{#321350}

[sullivan, 2015-03-19 13:50:24]

Created Revert of gpu: Measure texture uploads with glTexSubImage2D and
glTexImage2D.

[commit-bot: I haz the power, 2015-03-19 13:50:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1011343005/1

[commit-bot: I haz the power, 2015-03-19 13:51:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-19 13:52:46]

Patchset 1 (id:??) landed as
https://crrev.com/259170b7fdd43ee87754d1ee89e865443c3af561
Cr-Commit-Position: refs/heads/master@{#321350}