[CQ] Remove experimental bot temporarily.

BUG=chromium:655033,v8:5502
NOTRY=true
NOPRESUBMIT=true
TBR=tandrii@chromium.org

Review-Url: https://codereview.chromium.org/2411283002
Cr-Commit-Position: refs/heads/master@{#40193}

infra/config/cq.cfg

@@ -102,10 +102,10 @@ verifiers {
         name: "v8_linux_blink_rel"
         experiment_percentage: 100
       }
-      builders {
-        name: "v8_linux64_sanitizer_coverage_rel"
-        experiment_percentage: 100
-      }
+      #builders {
+      #  name: "v8_linux64_sanitizer_coverage_rel"
+      #  experiment_percentage: 100
+      #}
     }
     buckets {
       name: "master.tryserver.chromium.win"