Revert of Mojo: Specify/check alignment of pointers more carefully. (https://coderevi...

Revert of Mojo: Specify/check alignment of pointers more carefully. (https://codereview.chromium.org/304303006/)

Reason for revert:
Broke the windows bots:
http://build.chromium.org/p/chromium.win/builders/Vista%20Tests%20%283%29/builds/40269
http://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%284%29/builds/26580

Original issue's description:
> Mojo: Specify/check alignment of pointers more carefully.
>
> Improve the verification routines especially in the case that no count
> is necessary.
>
> Also add a test.
>
> R=darin@chromium.org
>
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=273936

TBR=darin@chromium.org,viettrungluu@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/312463002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@274062 0039d316-1c4b-4281-b951-d872f2087c98