Remove Mojo bindings environment.

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 a2a33a0b7547540a86192e50b3d66c69792f4a5e..cb45f9ec5e9532ba94f887e2db80e01df5994459 100644
--- a/testing/buildbot/chromium.win.json
+++ b/testing/buildbot/chromium.win.json
@@ -250,12 +250,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "mojo_public_environment_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "mojo_public_system_unittests"
       },
       {
@@ -662,12 +656,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "mojo_public_environment_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "mojo_public_system_unittests"
       },
       {
@@ -1118,12 +1106,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "mojo_public_environment_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "mojo_public_system_unittests"
       },
       {
@@ -1502,12 +1484,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "mojo_public_environment_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "mojo_public_system_unittests"
       },
       {
@@ -1752,9 +1728,6 @@
         "test": "mojo_public_bindings_unittests"
       },
       {
-        "test": "mojo_public_environment_unittests"
-      },
-      {
         "test": "mojo_public_system_unittests"
       },
       {