chromiumos.tryserver: Remove gce_testing pool.

masters/master.chromiumos.tryserver/slaves.cfg

Index: masters/master.chromiumos.tryserver/slaves.cfg
diff --git a/masters/master.chromiumos.tryserver/slaves.cfg b/masters/master.chromiumos.tryserver/slaves.cfg
index 37bd1dd81fa4eda18584fa2ac6aa3ffa282cfc45..4ce1f5aee0623250a9055d0cbfcc369f11a80e0f 100644
--- a/masters/master.chromiumos.tryserver/slaves.cfg
+++ b/masters/master.chromiumos.tryserver/slaves.cfg
@@ -37,33 +37,28 @@ sa.AddPool('baremetal', *_GenerateBuilder('build%i-m2',
     ))
 sa.AddPool('gce', *_GenerateBuilder('cros-standard%i-c2',
     (1, 50)))
-sa.AddPool('gce_testing', *_GenerateBuilder('cros-testing%i-c2',
-    (1, 10)))
 
 # Define slave classes.
 precq = sa.Alloc('precq', subtype='baremetal', pools=('baremetal',), count=32)
 precq_novmtest = sa.Alloc('precq', subtype='gce', pools=('gce',), count=None)
 general = sa.Alloc('general', pools=('baremetal',), count=None)
-gce_testing = sa.Alloc('testing', subtype='gce', pools=('gce_testing',),
-                       count=None)
 
 for builders, pools in (
     (chromiumos_tryserver_util.precq_builders, (precq,)),
     (chromiumos_tryserver_util.precq_novmtest_builders, (precq_novmtest,)),
-    (chromiumos_tryserver_util.all_builders, (general, gce_testing)),
+    (chromiumos_tryserver_util.all_builders, (general,)),
     ):
   for builder in builders:
     for pool in pools:
       sa.Join(builder, pool)
 
 def _GenerateSlave(host, entry):
-  testing = gce_testing in entry.classes
   return {
         'master': 'ChromiumOSTryServer',
         'builder': list(entry.keys),
         'hostname': host,
         'os': 'linux',
-        'version': 'precise' if not testing else 'testing',
+        'version': 'trusty',
     }
 slaves = [_GenerateSlave(slave, builders)
           for slave, builders in sa.GetSlaveMap().entries.iteritems()]