Remove console.error for invalid sourcemaps
Remove console.error for invalid sourcemaps

This cl removes the console.error that's showing up
when inspecting devtools and the page that's inspected
by the original devtools fails to load some sourcemaps.
It still prints a warning to the original devtools though.

This depends on crrev.com/c/1936491.

Bug: chromium:1936249
Change-Id: I6a9350c2b6cc0636a267ad3ef791acb846a13cf2
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1934213
Reviewed-by: Mike Jackson <99f87a6916722b2afede8077f5cd676395cda818@microsoft.com>
Reviewed-by: Ingvar Stepanyan <62070607b8a20742f77a132d590706c0c02d8f9a@google.com>
Reviewed-by: Sigurd Schneider <f04d242e109628a27a0f75fd49a87722bcf291fd@chromium.org>
Commit-Queue: Jan Scheffler <8abd9e3d93041d096604cb2a1b3070dd7075ba7b@chromium.org>

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