webtry: Simplify template construction.

webtry: Simplify template construction.

text/template and html/template both have a helper function called
"Must" that according to the docs in http://golang.org/pkg/text/template/#Must
and http://golang.org/pkg/html/template/#Must, wraps a call to a function
returning (*Template, error) and panics if the error is non-nil.

So we don't need to that ourselves. Which is a good thing and makes code
cleaner.

BUG=None
TEST=None
R=jcgregorio@google.com

Committed: https://skia.googlesource.com/skia/+/585a5fc243e290ad9055ae1439a5e505d1ce7368

[tfarina, 2014-10-13 21:10:59]

ptal.

[tfarina, 2014-10-14 15:47:11]

tfarina@chromium.org changed reviewers:
+ jcgregorio@google.com
- humper@google.com

[tfarina, 2014-10-14 15:47:12]

Reversing.

+joe, could you review this to me?

[jcgregorio, 2014-10-14 16:29:23]

On 2014/10/14 15:47:12, tfarina wrote:
> Reversing.
> 
> +joe, could you review this to me?

LGTM

[tfarina, 2014-10-14 16:32:09]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2014-10-14 16:32:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/642243004/1

[commit-bot: I haz the power, 2014-10-14 16:39:05]

Committed patchset #1 (id:1) as 585a5fc243e290ad9055ae1439a5e505d1ce7368