Revert "Roll DevTools Frontend from 88a5d76f5f62 to 214971471446 (2 revisions)"

This reverts commit 4f07b55d.

Reason for revert:
* DevTools browser tests failing on Win7 Tests (dbg)(1)
* Culprit range https://chromium.googlesource.com/chromium/src/+log/21a14c8bdf3e885c3131f7f8b94c16bed42df603%5E..3f69f1b139fce1d827865806b5c1432a477e34cd
* This is the only DevTools-related change in that range

Original change's description:
> Roll DevTools Frontend from 88a5d76f5f62 to 214971471446 (2 revisions)
> 
> https://chromium.googlesource.com/devtools/devtools-frontend.git/+log/88a5d76f5f62..214971471446
> 
> 2020-09-09 jacktfranklin@chromium.org Expose the live directive from LitHtml
> 2020-09-09 devtools-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com Update DevTools DEPS.
> 
> If this roll has caused a breakage, revert this CL and stop the roller
> using the controls here:
> https://autoroll.skia.org/r/devtools-frontend-chromium
> Please CC devtools-waterfall-sheriff-onduty@grotations.appspotmail.com on the revert to ensure that a human
> is aware of the problem.
> 
> To report a problem with the AutoRoller itself, please file a bug:
> https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug
> 
> Documentation for the AutoRoller is here:
> https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md
> 
> Bug: None
> Tbr: devtools-waterfall-sheriff-onduty@grotations.appspotmail.com
> Change-Id: Ie7af2d4c541d054337a72daa4e11c9530b120927
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2401299
> Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
> Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/master@{#805365}

TBR=chromium-autoroll@skia-public.iam.gserviceaccount.com,devtools-waterfall-sheriff-onduty@grotations.appspotmail.com

Change-Id: Idd4098ed2e359c4513a2479e3fdd02e1c9249499
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: None
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2401908Reviewed-by: David Van Cleve <davidvc@chromium.org>
Commit-Queue: David Van Cleve <davidvc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805473}

DEPS

@@ -266,7 +266,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling devtools-frontend
   # and whatever else without interference from each other.
-  'devtools_frontend_revision': '149db0ded77e7968e077a5bd50909d1f19179307',
+  'devtools_frontend_revision': '88a5d76f5f629f70e73592f7a5f075dfa081bb05',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libprotobuf-mutator
   # and whatever else without interference from each other.