CQ: switch to 100% LUCI builders.

R=jchinlee@chromium.org

Bug: 830992
Change-Id: Ic18a6bc309661581be55dd39510d5223cefefc40
Reviewed-on: https://chromium-review.googlesource.com/1026631Reviewed-by: Jao-ke Chin-Lee <jchinlee@chromium.org>
Commit-Queue: Andrii Shyshkalov <tandrii@chromium.org>

infra/config/cq.cfg

@@ -25,19 +25,6 @@ verifiers {
     }
     buckets {
       name: "luci.infra-internal.try"
-
-      builders {
-        name: "build_limited Roll Tester (depot_tools)"
-        experiment_percentage: 100
-      }
-      builders {
-        name: "release_scripts Roll Tester (depot_tools)"
-        experiment_percentage: 100
-      }
-    }
-
-    buckets {
-      name: "master.internal.infra.try"
       builders { name: "build_limited Roll Tester (depot_tools)" }
       builders { name: "release_scripts Roll Tester (depot_tools)" }
     }