V8 Buildbot: Remove swarming staging builders/testers.

masters/master.client.v8/master.cfg

Index: masters/master.client.v8/master.cfg
diff --git a/masters/master.client.v8/master.cfg b/masters/master.client.v8/master.cfg
index 5567059fccc096d7c9565f8c4a8396faa2c40c1f..962d56fb925f1534afc78c09b1bc97ed291a21c5 100644
--- a/masters/master.client.v8/master.cfg
+++ b/masters/master.client.v8/master.cfg
@@ -53,8 +53,7 @@ s_v8 = Scheduler(name='v8_src',
                  branch='master',
                  treeStableTimer=0,
                  builderNames=['V8 Linux - debug builder',
-                               'V8 Linux - swarming staging builder',
-                               'V8 Linux - swarming staging 3',
+                               'V8 Linux - swarming staging',
                                'V8 Linux - nosnap builder',
                                'V8 Linux - nosnap debug builder',
                                'V8 Linux - shared',
@@ -179,14 +178,6 @@ b_v8_linux_debug_builder = {
   'auto_reboot' : False,
 }
 
-b_v8_linux_swarming_builder = {
-  'name': 'V8 Linux - swarming staging builder',
-  'factory': m_annotator.BaseFactory('v8'),
-  'category': CATEGORY_FYI,
-  'slavebuilddir': 'linux-swarming',
-  'auto_reboot' : False,
-}
-
 b_v8_linux_nosnap_builder = {
   'name': 'V8 Linux - nosnap builder',
   'factory':  m_annotator.BaseFactory('v8'),
@@ -220,27 +211,11 @@ b_v8_linux = {
   'auto_reboot' : False,
 }
 
-b_v8_linux_swarming_1 = {
-  'name': 'V8 Linux - swarming staging 1',
-  'slavebuilddir': 'linux-swarming-1',
+b_v8_linux_swarming = {
+  'name': 'V8 Linux - swarming staging',
   'factory': m_annotator.BaseFactory('v8'),
   'category': CATEGORY_FYI,
-  'auto_reboot' : False,
-}
-
-b_v8_linux_swarming_2 = {
-  'name': 'V8 Linux - swarming staging 2',
-  'slavebuilddir': 'linux-swarming-2',
-  'factory': m_annotator.BaseFactory('v8'),
-  'category': CATEGORY_FYI,
-  'auto_reboot' : False,
-}
-
-b_v8_linux_swarming_3 = {
-  'name': 'V8 Linux - swarming staging 3',
-  'factory': m_annotator.BaseFactory('v8'),
-  'category': CATEGORY_FYI,
-  'slavebuilddir': 'linux-swarming-3',
+  'slavebuilddir': 'linux-swarming',
   'auto_reboot' : False,
 }
 
@@ -959,14 +934,11 @@ b_v8_linux_arm64_sim_gc = CreateA64GCStressBuilder()
 
 c['builders'] = [b_v8_linux_builder,
                  b_v8_linux_debug_builder,
-                 b_v8_linux_swarming_builder,
                  b_v8_linux_nosnap_builder,
                  b_v8_linux_nosnap_debug_builder,
                  b_v8_linux_presubmit,
                  b_v8_linux,
-                 b_v8_linux_swarming_1,
-                 b_v8_linux_swarming_2,
-                 b_v8_linux_swarming_3,
+                 b_v8_linux_swarming,
                  b_v8_linux_debug,
                  b_v8_linux_shared,
                  b_v8_linux_nosnap,