remove update-parachain-template (#2077)

will be moved to polkadot's pipeline

ref https://github.com/paritytech/release-engineering/issues/142

scripts/ci/gitlab/pipeline/publish.yml

@@ -103,17 +103,3 @@ publish-benchmarks-collectives-s3:
   needs:
     - job:                         benchmarks-collectives
       artifacts:                   true
-
-# Ref: https://github.com/paritytech/opstooling/issues/111
-update-parachain-template:
-  stage:                           publish
-  extends:                         .kubernetes-env
-  rules:
-    - if: $CI_COMMIT_REF_NAME =~ /^polkadot-v[0-9]+\.[0-9]+.*$/ # i.e. polkadot-v1.0.99, polkadot-v2.1rc1
-  script:
-    - git clone --depth=1 --branch="$PIPELINE_SCRIPTS_TAG" https://github.com/paritytech/pipeline-scripts
-    - ./pipeline-scripts/update_substrate_template.sh
-      --repo-name "substrate-parachain-template"
-      --template-path "parachain-template"
-      --github-api-token "$GITHUB_TOKEN"
-      --polkadot-branch "$CI_COMMIT_REF_NAME"