Remove non-existing files from license-check exceptions
Remove non-existing files from license-check exceptions

These files have been ported to TypeScript, which includes renaming and
adding our license header. Therefore there is no need for these
exceptions anymore.

Bug: none
Change-Id: I32d0109a19ace5b4bcb771d02beb2e23b5960e13
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2744778
Reviewed-by: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>
Reviewed-by: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>
Commit-Queue: Wolfgang Beyer <573aa99bb19da47d816981118f95c945310dd3f4@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend