Revert of permissions: add layout tests for multiple requests (patchset #2 id:20001 of https://codereview.chromium.org/1381023003/ )

Reason for revert:
BUG=538717

Original issue's description:
> permissions: add layout tests for multiple requests
>
> No permisisons, single, multiple and duplicate permissions
> are all tested. Permission updates being reflected in the request
> is also tested.
>
> BUG=516626
>
> Committed: https://crrev.com/4a5a84a2a326cecc6d183478ca684aea753adc18
> Cr-Commit-Position: refs/heads/master@{#352015}

TBR=mlamouri@chromium.org,lalitm@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=516626

Review URL: https://codereview.chromium.org/1376523006

Cr-Commit-Position: refs/heads/master@{#352115}
5 files changed