Remove Remoting API Key

Chromoting host no longer needs API Key, so the key can be removed.

Change-Id: I0960660ce2ddd5f4352ab691468d7c3881530d8d
Reviewed-on: https://chromium-review.googlesource.com/540035
Reviewed-by: Roger Tawa <rogerta@chromium.org>
Reviewed-by: Joe Downing <joedow@chromium.org>
Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#480940}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: e8f9d07dc81bad7e5fdd7d2c28a3ef14334b5d1c
3 files changed