ci: Remove lightest sync test

It's failing because of missing peers.

Author: palango

.github/workflows/blockchain.yml

@@ -321,35 +321,6 @@ jobs:
         message: "${{ env.PR_SUMMARY_MESSAGE }}"
         message-id: istanbul-cov-summary
 
-  lightest-sync-test:
-    name: Lightest sync test
-    runs-on: ["8-cpu","self-hosted","blockchain"]
-
-    needs:
-    - go-modules
-    - build-and-store-binaries
-
-    steps:
-    - name: Checkout repo
-      uses: actions/checkout@v6
-    - name: Setup golang
-      uses: actions/setup-go@v5
-      with:
-        go-version: ${{ env.GO_VERSION }}
-        check-latest: false
-        cache: true
-    - name: Download pre-built binaries
-      uses: actions/download-artifact@v6
-      with:
-        name: binaries
-        path: ./build/bin
-    - name: Fix permissions
-      run: |
-        chmod +x ./build/bin/*
-    - name: Run sync test
-      run: |
-        DATADIR=/tmp/lightest_sync_test_data MODE=lightest ./scripts/sync_test.sh
-
   e2e-benchmarks:
     name: End-to-end benchmarks
     runs-on: ["8-cpu","self-hosted","blockchain"]