Remove apparently unused cq_name field.

I got an automated email from the previous config update to remove this.

Change-Id: I45586d3bda3241a513bf2f6a8ec3b2a87fc4f2f9
Reviewed-on: https://boringssl-review.googlesource.com/30584
Reviewed-by: Ryan Tseng <hinoka@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>

infra/config/cq.cfg

diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 1613b89..72c95d8 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -1,7 +1,6 @@
 # See http://luci-config.appspot.com/schemas/projects/refs:cq.cfg for the
 # documentation of this file format.
 version: 1
-cq_name: "boringssl"
 git_repo_url: "https://boringssl.googlesource.com/boringssl"
 cq_status_url: "https://chromium-cq-status.appspot.com"
 gerrit {