Remove Win Aura bots from the buildbot and tryservers since they're now redundant as trunk Windows …

masters/master.tryserver.chromium/master.cfg

Index: masters/master.tryserver.chromium/master.cfg
===================================================================
--- masters/master.tryserver.chromium/master.cfg	(revision 233623)
+++ masters/master.tryserver.chromium/master.cfg	(working copy)
@@ -679,6 +679,8 @@
 win_targets = common_targets[:]
 win_tests = [
   'app_list_unittests_br',
+  'ash_unittests_br',
+  'aura_br',
   'base_unittests_br',
   'blink_platform_unittests_br',
   'browser_tests_br',
@@ -691,6 +693,7 @@
   'chromedriver_tests_br',
   'chromedriver2_unittests_br',
   'components_unittests_br',
+  'compositor_br',
   'content_browsertests_br',
   'courgette_br',
   'crypto_br',
@@ -700,6 +703,7 @@
   'installer_br',
   'interactive_ui_tests_br',
   'jingle_br',
+  'keyboard_unittests',
   'media_br',
   'nacl_integration_br',
   'net_br',