--- a/taskcluster/ci/spidermonkey/kind.yml
+++ b/taskcluster/ci/spidermonkey/kind.yml
@@ -130,17 +130,16 @@ jobs:
 
     sm-plain-windows/debug:
         description: "Spidermonkey Plain"
         index:
             job-name: sm-win-plaindebug-debug
         treeherder:
             platform: windows2012-32/debug
             symbol: SM-tc(p)
-            tier: 3
         worker-type: aws-provisioner-v1/gecko-{level}-b-win2012
         worker:
             max-run-time: 36000
             env:
               TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/releng.manifest"
         run:
             spidermonkey-variant: plaindebug
 
@@ -160,17 +159,16 @@ jobs:
 
     sm-plain-windows/opt:
         description: "Spidermonkey Plain"
         index:
             job-name: sm-win-plain-opt
         treeherder:
             platform: windows2012-32/opt
             symbol: SM-tc(p)
-            tier: 3
         worker-type: aws-provisioner-v1/gecko-{level}-b-win2012
         worker:
             max-run-time: 36000
             env:
               TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/releng.manifest"
         run:
             spidermonkey-variant: plain
 
@@ -235,17 +233,16 @@ jobs:
 
     sm-compacting-windows/debug:
         description: "Spidermonkey Compacting"
         index:
             job-name: sm-win-compacting-debug
         treeherder:
             platform: windows2012-32/debug
             symbol: SM-tc(cgc)
-            tier: 3
         worker-type: aws-provisioner-v1/gecko-{level}-b-win2012
         worker:
             max-run-time: 36000
             env:
                 TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win32/releng.manifest"
         run:
             spidermonkey-variant: compacting