Revert of Reland of depot_tools: add infra_paths recipe module for infra-specific paths (patchset #1 id:1 of https://codereview.chromium.org/1917263002/ )

Hopefully everything will be back to normal now...

Original issue's description:
> depot_tools: add infra_paths recipe module for infra-specific paths
>
> Depends on https://codereview.chromium.org/1906323003
>
> BUG=chromium:605919
>
> Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=300184

TBR=iannucci@chromium.org,hinoka@chromium.org,phajdan.jr@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:605919

Review URL: https://codereview.chromium.org/1915033006

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@300210 0039d316-1c4b-4281-b951-d872f2087c98