Switch fuchsia-official to use dedicated pool

Submit this after crrev.com/i/3981971.

Bug: 1228842
Change-Id: Ie7806a37a35d747b56b27dd05afbb145d2a86bc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3027881
Commit-Queue: Sven Zheng <svenzheng@chromium.org>
Reviewed-by: Chong Gu <chonggu@google.com>
Reviewed-by: Garrett Beaty <gbeaty@chromium.org>
Cr-Commit-Position: refs/heads/master@{#903575}
diff --git a/infra/config/generated/cr-buildbucket.cfg b/infra/config/generated/cr-buildbucket.cfg
index 009eade0..413d6a10 100644
--- a/infra/config/generated/cr-buildbucket.cfg
+++ b/infra/config/generated/cr-buildbucket.cfg
@@ -33972,12 +33972,11 @@
       name: "fuchsia-official"
       swarming_host: "chromium-swarm.appspot.com"
       swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "builderless:1"
+      dimensions: "builder:fuchsia-official"
       dimensions: "cores:32"
       dimensions: "cpu:x86-64"
       dimensions: "os:Ubuntu-18.04"
       dimensions: "pool:luci.chromium.ci"
-      dimensions: "ssd:0"
       exe {
         cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
         cipd_version: "refs/heads/master"
diff --git a/infra/config/subprojects/chromium/ci.star b/infra/config/subprojects/chromium/ci.star
index e64dc57..2fada4e3 100644
--- a/infra/config/subprojects/chromium/ci.star
+++ b/infra/config/subprojects/chromium/ci.star
@@ -1497,6 +1497,7 @@
 ci.chromium_builder(
     name = "fuchsia-official",
     branch_selector = branches.STANDARD_MILESTONE,
+    builderless = False,
     main_console_view = "main",
     console_view_entry = [
         consoles.console_view_entry(