cq.cfg: remove cq_name.

TBR=mknyszek

Bug: 866476
Change-Id: Ia94a28750ed008bef0e5504efd7c9bf7e309e3fb
Reviewed-on: https://chromium-review.googlesource.com/1155748
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>

infra/config/cq.cfg

@@ -2,7 +2,6 @@
 # at http://luci-config.appspot.com/schemas/projects/refs:cq.cfg.
 
 version: 1
-cq_name: "depot_tools"
 cq_status_url: "https://chromium-cq-status.appspot.com"
 git_repo_url: "https://chromium.googlesource.com/chromium/tools/depot_tools"