libchrome: Remove backward-compatibility-0000-add-deprecated-base-Bind-APIs.patch

All ChromeOS packages (including net-wireless/floss via crrev.com/c/8463370)
have been migrated away from deprecated base::Bind, base::Callback,
base::Closure, and base::CancelableClosure APIs.

BUG=b:272116782
TEST=CQ
Cq-Depend: chromium:8499615
Change-Id: Ie0f35d8b18923e833801ca8aa4484c74d2b49bb3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/libchrome/+/8460360
Reviewed-by: Jae Hoon Kim <kimjae@chromium.org>
Reviewed-by: Byron Lee <byronlee@chromium.org>
Commit-Queue: Byron Lee <byronlee@chromium.org>
Tested-by: Byron Lee <byronlee@chromium.org>
Reviewed-by: Di Wu <diwux@google.com>