Take ash_unitests and mash_unittests off the Windows bots

testing/buildbot/chromium.win.json

Index: testing/buildbot/chromium.win.json
diff --git a/testing/buildbot/chromium.win.json b/testing/buildbot/chromium.win.json
index 0c109f5dd2574ca0b6423a6745e019d10e67178a..b94763bd6b3af7b0288eb08f62a0c87d21f312fd 100644
--- a/testing/buildbot/chromium.win.json
+++ b/testing/buildbot/chromium.win.json
@@ -35,12 +35,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "ash_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "aura_unittests"
       },
       {
@@ -250,15 +244,6 @@
         "test": "keyboard_unittests"
       },
       {
-        "args": [
-          "--override-use-gl-with-osmesa-for-tests"
-        ],
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "mash_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
@@ -562,12 +547,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "ash_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "aura_unittests"
       },
       {
@@ -1022,12 +1001,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "ash_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "aura_unittests"
       },
       {
@@ -1243,15 +1216,6 @@
         "test": "keyboard_unittests"
       },
       {
-        "args": [
-          "--override-use-gl-with-osmesa-for-tests"
-        ],
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "mash_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
@@ -1509,12 +1473,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "ash_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "aura_unittests"
       },
       {