Add a list of files that should be removed when rolling ANGLE into
Android. The jsoncpp OWNERS file fails to upload to the Android gerrit
because it contains owners that have never signed into the Android
gerrit.

BUG=b:150892231

Change-Id: I699dada53cdda2fbd012733a7a91eb8b5fb79d35
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2152668
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>