No longer set CQ-Verified label on CQ success/failure.

R=davidben@google.com

Bug: chromium:906576
Change-Id: I56b16a76fabe37822a1a7eb3f075a476f83818ea
Reviewed-on: https://boringssl-review.googlesource.com/c/33270
Reviewed-by: David Benjamin <davidben@google.com>

infra/config/cq.cfg

diff --git a/infra/config/cq.cfg b/infra/config/cq.cfg
index 72c95d8..f4cb180 100644
--- a/infra/config/cq.cfg
+++ b/infra/config/cq.cfg
@@ -3,9 +3,7 @@
 version: 1
 git_repo_url: "https://boringssl.googlesource.com/boringssl"
 cq_status_url: "https://chromium-cq-status.appspot.com"
-gerrit {
-  cq_verified_label: "CQ-Verified"
-}
+gerrit {}
 verifiers {
   gerrit_cq_ability {
     committer_list: "project-boringssl-committers"