Turn off fuchsia CQ 1% experiments.

Bots have flipped to LUCI.

Bug: 783000, 783001
Change-Id: I8741d75545360cddf15f9d7d1656d1bdeece94a0
Reviewed-on: https://chromium-review.googlesource.com/1034303Reviewed-by: Stephen Martinis <martiniss@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#554830}

infra/config/branch/cq.cfg

@@ -108,18 +108,6 @@ verifiers {
         name: "linux_chromium_tsan_rel_ng"
         equivalent_to { bucket: "luci.chromium.try" percentage: 100 }
       }
-      builders {
-        # Temporary addition to gather data for LUCI migration.
-        # https://crbug.com/783000
-        name: "fuchsia_arm64_cast_audio"
-        experiment_percentage: 1
-      }
-      builders {
-        # Temporary addition to gather data for LUCI migration.
-        # https://crbug.com/783001
-        name: "fuchsia_x64_cast_audio"
-        experiment_percentage: 1
-      }
     }
     buckets {
       name: "master.tryserver.chromium.mac"