remove 'ChromeOS Swarm' builder

Before rename, let me remove 'ChromeOS Swarm'.
This does not have appropriate setup now.

Bug: 955013
Change-Id: I5a520236b01dc969b041b6b6db6c2ef7bff37900
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1992950
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: Yoshisato Yanagisawa <yyanagisawa@google.com>
Cr-Commit-Position: refs/heads/master@{#729665}

infra/config/dev/buckets/ci.star

@@ -60,10 +60,6 @@ ci_builder(
     name = 'Android N5X Swarm',
 )
 
-ci_builder(
-    name = 'ChromeOS Swarm',
-)
-
 ci_builder(
     name = 'Linux Swarm',
 )

infra/config/dev/consoles/chromium.swarm.star

@@ -5,7 +5,6 @@ luci.console_view(
     entries = [
         luci.console_view_entry(builder = 'ci/Android N5 Swarm'),
         luci.console_view_entry(builder = 'ci/Android N5X Swarm'),
-        luci.console_view_entry(builder = 'ci/ChromeOS Swarm'),
         luci.console_view_entry(builder = 'ci/Linux Swarm'),
         luci.console_view_entry(builder = 'ci/Mac Swarm'),
         luci.console_view_entry(builder = 'ci/Windows Swarm'),

infra/config/generated/cr-buildbucket-dev.cfg

@@ -54,22 +54,6 @@ buckets: <
       build_numbers: YES
       service_account: "chromium-ci-builder-dev@chops-service-accounts.iam.gserviceaccount.com"
     >
-    builders: <
-      name: "ChromeOS Swarm"
-      swarming_host: "chromium-swarm-dev.appspot.com"
-      swarming_tags: "vpython:native-python-wrapper"
-      dimensions: "cpu:x86-64"
-      dimensions: "os:Ubuntu-16.04"
-      recipe: <
-        name: "swarming/staging"
-        cipd_package: "infra/recipe_bundles/chromium.googlesource.com/chromium/tools/build"
-        cipd_version: "refs/heads/master"
-        properties_j: "mastername:\"chromium.swarm\""
-      >
-      execution_timeout_secs: 10800
-      build_numbers: YES
-      service_account: "chromium-ci-builder-dev@chops-service-accounts.iam.gserviceaccount.com"
-    >
     builders: <
       name: "Linux Swarm"
       swarming_host: "chromium-swarm-dev.appspot.com"

infra/config/generated/luci-milo-dev.cfg

@@ -16,9 +16,6 @@ consoles: <
   builders: <
     name: "buildbucket/luci.chromium.ci/Android N5X Swarm"
   >
-  builders: <
-    name: "buildbucket/luci.chromium.ci/ChromeOS Swarm"
-  >
   builders: <
     name: "buildbucket/luci.chromium.ci/Linux Swarm"
   >

infra/config/generated/luci-scheduler-dev.cfg

@@ -22,15 +22,6 @@ job: <
     builder: "Android N5X Swarm"
   >
 >
-job: <
-  id: "ChromeOS Swarm"
-  acl_sets: "ci"
-  buildbucket: <
-    server: "cr-buildbucket-dev.appspot.com"
-    bucket: "luci.chromium.ci"
-    builder: "ChromeOS Swarm"
-  >
->
 job: <
   id: "Linux Swarm"
   acl_sets: "ci"
@@ -73,7 +64,6 @@ trigger: <
   acl_sets: "ci"
   triggers: "Android N5 Swarm"
   triggers: "Android N5X Swarm"
-  triggers: "ChromeOS Swarm"
   triggers: "Linux Swarm"
   triggers: "Mac Swarm"
   triggers: "Windows Swarm"

tools/mb/mb_config.pyl

@@ -535,7 +535,6 @@
     'chromium.swarm': {
       'Android N5 Swarm': 'android_release_bot_minimal_symbols',
       'Android N5X Swarm': 'android_release_bot_minimal_symbols_arm64',
-      'ChromeOS Swarm': 'cros_chrome_sdk',
       'Linux Swarm': 'release_bot_minimal_symbols',
       'Mac Swarm': 'release_bot_mac_strip_minimal_symbols',
       'Windows Swarm': 'release_bot_minimal_symbols',