Revert of Add logging for ScriptedAnimationController. (patchset #1 of https://codereview.chromium.org/484323002/)

Reason for revert:
Broke https://build.chromium.org/p/chromium.webkit/builders/Android%20Builder%20(dbg)/builds/33277/steps/compile/logs/stdio

Original issue's description:
> Add logging for ScriptedAnimationController.
> 
> This is for debugging RAF based WebGL conformance tests random timeouts.
> 
> BUG=393331
> TEST=bots
> NOTRY=true
> R=kbr@chromium.org,eseidel@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180672

TBR=eseidel@chromium.org,kbr@chromium.org,zmo@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=393331

Review URL: https://codereview.chromium.org/488863004

git-svn-id: svn://svn.chromium.org/blink/trunk@180682 bbb929c8-8fbe-4397-9dbb-9b2b20218538