Revert 176986 - breaks tools/perf and tools/telemetry presubmit

Revert 176986 - breaks tools/perf and tools/telemetry presubmit

While I totally get this for production code, it doesn't apply to for example
tools/perf, where we keep sitelists intentionally. Because this hooks into
common checks, there's no clean way to disable it that I can see.


> Warn when committing code with http:// URLs.
> 
> We prefer HTTPS for everything, to the extent possible.
> 
> NOTRY=true
> BUG=156396
> 
> 
> Review URL: https://chromiumcodereview.appspot.com/11779037

TBR=palmer@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=177079