Move Win x64 clobber bot and remove Win x64 GN bots.

masters/master.tryserver.chromium.win/master.cfg

Index: masters/master.tryserver.chromium.win/master.cfg
diff --git a/masters/master.tryserver.chromium.win/master.cfg b/masters/master.tryserver.chromium.win/master.cfg
index 58171ad8991aaf98077dc1a96c4af83e5b664953..c8934cc03f47ad804f5de816b210179639c9ab21 100644
--- a/masters/master.tryserver.chromium.win/master.cfg
+++ b/masters/master.tryserver.chromium.win/master.cfg
@@ -86,6 +86,11 @@ chromium_builders.append({
 })
 
 chromium_builders.append({
+  'name': 'win_x64_archive',
+  'factory': m_annotator.BaseFactory('chromium_trybot', timeout=3600),
+})
+
+chromium_builders.append({
   'name': 'win_chromium_x64_rel_ng',
   'factory': m_annotator.BaseFactory(
       'chromium_trybot', timeout=3600, max_time=master_utils.CQ_MAX_TIME_WIN),
@@ -98,14 +103,6 @@ chromium_builders.extend([{
     'factory': m_annotator.BaseFactory('chromium_trybot'),
     'slavebuilddir': 'win_gn',
   },{
-    'name': 'win_chromium_gn_x64_dbg',
-    'factory': m_annotator.BaseFactory('chromium_trybot'),
-    'slavebuilddir': 'win_gn',
-  },{
-    'name': 'win_chromium_gn_x64_rel',
-    'factory': m_annotator.BaseFactory('chromium_trybot'),
-    'slavebuilddir': 'win_gn',
-  },{
     'name': 'win8_chromium_gn_dbg',
     'factory': m_annotator.BaseFactory('chromium_trybot'),
     'slavebuilddir': 'win_gn',