Remove duplicated devtools_frontend_host.h from browser_sources

Change-Id: Ibaff557837b56061a0efbb2b82c673585963deb8
Reviewed-on: https://chromium-review.googlesource.com/1204132
Reviewed-by: Antoine Labour <piman@chromium.org>
Commit-Queue: Tomasz Moniuszko <tmoniuszko@opera.com>
Cr-Commit-Position: refs/heads/master@{#591618}
1 file changed