diff --git a/.ci/gcb-generate-diffs-new.yml b/.ci/gcb-generate-diffs-new.yml
index 620645e69411..34d8c4ecd970 100644
--- a/.ci/gcb-generate-diffs-new.yml
+++ b/.ci/gcb-generate-diffs-new.yml
@@ -255,7 +255,7 @@ steps:
     - name: 'gcr.io/graphite-docker-images/go-plus'
       id: gcb-tpg-vcr-test
       entrypoint: '/workspace/.ci/scripts/go-plus/magician/exec.sh'
-      secretEnv: ["GITHUB_TOKEN_DOWNSTREAMS", "GITHUB_TOKEN_MAGIC_MODULES", "GOOGLE_BILLING_ACCOUNT", "GOOGLE_CUST_ID", "GOOGLE_FIRESTORE_PROJECT", "GOOGLE_IDENTITY_USER", "GOOGLE_MASTER_BILLING_ACCOUNT", "GOOGLE_ORG", "GOOGLE_ORG_2", "GOOGLE_ORG_DOMAIN", "GOOGLE_PROJECT", "GOOGLE_PROJECT_NUMBER", "GOOGLE_SERVICE_ACCOUNT", "SA_KEY", "GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION", "GOOGLE_TPU_V2_VM_RUNTIME_VERSION"]
+      secretEnv: ["GITHUB_TOKEN_DOWNSTREAMS", "GITHUB_TOKEN_MAGIC_MODULES", "GOOGLE_BILLING_ACCOUNT", "GOOGLE_CUST_ID", "GOOGLE_FIRESTORE_PROJECT", "GOOGLE_IDENTITY_USER", "GOOGLE_MASTER_BILLING_ACCOUNT", "GOOGLE_ORG", "GOOGLE_ORG_2", "GOOGLE_ORG_DOMAIN", "GOOGLE_PROJECT", "GOOGLE_PROJECT_NUMBER", "GOOGLE_SERVICE_ACCOUNT", "SA_KEY", "GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION"]
       waitFor: ["diff"]
       env:
         - BASE_BRANCH=$_BASE_BRANCH
@@ -318,5 +318,3 @@ availableSecrets:
       env: SA_KEY
     - versionName: projects/673497134629/secrets/ci-test-public-advertised-prefix-description/versions/latest
       env: GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION
-    - versionName: projects/673497134629/secrets/ci-test-tpu-v2-vm-runtime-version/versions/latest
-      env: GOOGLE_TPU_V2_VM_RUNTIME_VERSION
diff --git a/.ci/gcb-push-downstream.yml b/.ci/gcb-push-downstream.yml
index 9188e749a00d..e351011f9f2b 100644
--- a/.ci/gcb-push-downstream.yml
+++ b/.ci/gcb-push-downstream.yml
@@ -206,7 +206,6 @@ steps:
         - "GOOGLE_SERVICE_ACCOUNT"
         - "SA_KEY"
         - "GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION"
-        - "GOOGLE_TPU_V2_VM_RUNTIME_VERSION"
       env:
         - "COMMIT_SHA=$COMMIT_SHA"
         - "GOOGLE_REGION=us-central1"
@@ -253,5 +252,3 @@ availableSecrets:
       env: SA_KEY
     - versionName: projects/673497134629/secrets/ci-test-public-advertised-prefix-description/versions/latest
       env: GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION
-    - versionName: projects/673497134629/secrets/ci-test-tpu-v2-vm-runtime-version/versions/latest
-      env: GOOGLE_TPU_V2_VM_RUNTIME_VERSION
diff --git a/.ci/gcb-vcr-nightly.yml b/.ci/gcb-vcr-nightly.yml
index 3664d6312d34..ee48902cb8c5 100644
--- a/.ci/gcb-vcr-nightly.yml
+++ b/.ci/gcb-vcr-nightly.yml
@@ -3,7 +3,7 @@ steps:
     - name: 'gcr.io/graphite-docker-images/go-plus'
       id: gcb-vcr-nightly
       entrypoint: '/workspace/.ci/scripts/go-plus/vcr-cassette-update/vcr_cassette_update.sh'
-      secretEnv: ["GOOGLE_BILLING_ACCOUNT", "GOOGLE_CUST_ID", "GOOGLE_FIRESTORE_PROJECT", "GOOGLE_IDENTITY_USER", "GOOGLE_MASTER_BILLING_ACCOUNT", "GOOGLE_ORG", "GOOGLE_ORG_2", "GOOGLE_ORG_DOMAIN", "GOOGLE_PROJECT", "GOOGLE_PROJECT_NUMBER", "GOOGLE_SERVICE_ACCOUNT", "SA_KEY", "GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION", "GOOGLE_TPU_V2_VM_RUNTIME_VERSION"]
+      secretEnv: ["GOOGLE_BILLING_ACCOUNT", "GOOGLE_CUST_ID", "GOOGLE_FIRESTORE_PROJECT", "GOOGLE_IDENTITY_USER", "GOOGLE_MASTER_BILLING_ACCOUNT", "GOOGLE_ORG", "GOOGLE_ORG_2", "GOOGLE_ORG_DOMAIN", "GOOGLE_PROJECT", "GOOGLE_PROJECT_NUMBER", "GOOGLE_SERVICE_ACCOUNT", "SA_KEY", "GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION"]
       args:
           - $BUILD_ID
 
@@ -41,5 +41,3 @@ availableSecrets:
       env: SA_KEY
     - versionName: projects/673497134629/secrets/ci-test-public-advertised-prefix-description/versions/latest
       env: GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION
-    - versionName: projects/673497134629/secrets/ci-test-tpu-v2-vm-runtime-version/versions/latest
-      env: GOOGLE_TPU_V2_VM_RUNTIME_VERSION
diff --git a/.ci/magician/cmd/check_cassettes.go b/.ci/magician/cmd/check_cassettes.go
index d31cebe44ddd..e19f3f7c9ef3 100644
--- a/.ci/magician/cmd/check_cassettes.go
+++ b/.ci/magician/cmd/check_cassettes.go
@@ -28,7 +28,6 @@ var ccEnvironmentVariables = [...]string{
 	"GOOGLE_REGION",
 	"GOOGLE_SERVICE_ACCOUNT",
 	"GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION",
-	"GOOGLE_TPU_V2_VM_RUNTIME_VERSION",
 	"GOOGLE_ZONE",
 	"PATH",
 	"SA_KEY",
diff --git a/.ci/magician/cmd/test_terraform_vcr.go b/.ci/magician/cmd/test_terraform_vcr.go
index c3e0b54037be..74a37c5bbe12 100644
--- a/.ci/magician/cmd/test_terraform_vcr.go
+++ b/.ci/magician/cmd/test_terraform_vcr.go
@@ -30,7 +30,6 @@ var ttvEnvironmentVariables = [...]string{
 	"GOOGLE_REGION",
 	"GOOGLE_SERVICE_ACCOUNT",
 	"GOOGLE_PUBLIC_AVERTISED_PREFIX_DESCRIPTION",
-	"GOOGLE_TPU_V2_VM_RUNTIME_VERSION",
 	"GOOGLE_ZONE",
 	"HOME",
 	"PATH",