Revert of Catch uncaught promise rejections from V8 and log to console. (patchset #10 id:180001 of https://codereview.chromium.org/625943002/)

Reason for revert:
Broke extensions_unittests.ModuleSystemTest.TestRequireAsyncFromContextWithNoModuleRegistry and UtilsUnittest.PromiseError at least.

See http://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=extensions_unittests&tests=ModuleSystemTest.TestRequireAsyncFromContextWithNoModuleRegistry%2C%20UtilsUnittest.PromiseError

Original issue's description:
> Catch uncaught promise rejections from V8 and log to console.
> 
> Print error messages to DevTools console for rejected Promises that are unhandled by the platform end-of-turn.
> 
> BUG=393913
> R=pfeldman, yurys
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=183464

TBR=pfeldman@chromium.org,yurys@chromium.org,jl@opera.com,aandrey@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=393913

Review URL: https://codereview.chromium.org/648443002

git-svn-id: svn://svn.chromium.org/blink/trunk@183469 bbb929c8-8fbe-4397-9dbb-9b2b20218538