diff --git a/.gitea/workflows/sync-upstream.yml b/.gitea/workflows/sync-upstream.yml
deleted file mode 100644
index b66ee14..0000000
--- a/.gitea/workflows/sync-upstream.yml
+++ /dev/null
@@ -1,34 +0,0 @@
-name: Sync from upstream
-
-on:
-  workflow_dispatch: {}
-
-jobs:
-  sync:
-    runs-on: [self-hosted-ubuntu]
-    timeout-minutes: 120
-    steps:
-      - name: Mirror-fetch from upstream and push here
-        run: |
-          # Manual-only trigger is load-bearing: this repo exists
-          # specifically so chromium-fork's CI never talks to
-          # https://chromium.googlesource.com/external/github.com/WebKit/JetStream.git directly (see chromium-fork's ci.yml
-          # url.insteadOf rewrite). Upstream only gets contacted when a
-          # human explicitly runs this.
-          set -e
-          WORK_DIR="$(mktemp -d)"
-          cd "$WORK_DIR"
-
-          git clone --mirror \
-            https://chromium.googlesource.com/external/github.com/WebKit/JetStream.git \
-            upstream.git
-
-          SERVER_HOST="${{ github.server_url }}"
-          SERVER_HOST="${SERVER_HOST#https://}"
-          REPO_URL="https://x-access-token:${{ secrets.GITHUB_TOKEN }}@${SERVER_HOST}/${{ github.repository }}.git"
-
-          cd upstream.git
-          git push --mirror "$REPO_URL"
-
-          cd "$WORK_DIR"
-          rm -rf upstream.git